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ATPM 9.01
January 2003

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Review: Kinesis Advantage Pro

by Paul Fatula, pfatula@atpm.com

verynice

Developer: Kinesis

Price: $359 (regular version); $299 (without foot pedal and with less macro memory)

Requirements: USB

Trial: None

One of my favorite computer accessories is the keyboard. Not a boring ordinary flat keyboard but something really eccentric and unconventional-looking, not just for the sake of using something out of the ordinary (though I admit to that, too) but because those strange-looking keyboards that make people who walk into your office and gawk, “What is that?” look that way as a side effect of being designed well, with comfort of use as the first priority.

The Kinesis Advantage Pro is one such keyboard. I’ve seen Kinesis keyboards on the desks of Windows-using colleagues for years, and with the Advantage line, Kinesis has finally made its strange-shaped keyboard an option for Mac users.

Design

The Kinesis Advantage Pro is a single piece, solidly built (plastic, but it doesn’t feel cheap) keyboard, with two concave bowls of vertically-aligned keys, one for each hand. But it’s easier to show you than tell you, so have a look:

kinesis

I’m not really sure where the metallic silver color choice came from; maybe trying to match the TiBook? Anyway this is the only color the Pro version of the keyboard comes in. The regular version, priced at $299, comes in white and black. I’m not nuts about silver, but anything’s better than beige.

One thing I noticed right away is that the keyboard is marked with Command keys (one on each side), and even has Eject and Power keys. In fact, the keyboard, which is switchable for Mac or PC use, ships configured for Macintosh. Windows users are the second class citizens here, having to change the keyboard’s configuration if they want the thumb keys to work optimally.

Mac key labeling isn’t quite perfect, though: the Return key is labeled Enter, which is fine until you find yourself hunting for the Enter key. Confusingly, it’s also labeled Enter, and there are actually two of them, one below the home row of the right little finger, and the second below that. The key must be pressed in combination with holding down the keyboard’s foot petal (or while “keypad” mode is active) to produce an Enter rather than a character.

The only other thing I disliked, as far as key positions go, is that the spacebar is only available to the thumb of the right hand. The equivalent key on the left hand is backspace. I don’t know about you, but I use the spacebar a lot more frequently than I backspace, so that placement seems a little unbalanced. Also, coming from a regular keyboard, I’m accustomed to hitting space with either thumb. I had a terrible time adjusting to only hitting space with my right thumb; I was constantly deleting rather than spacing, even as far as two weeks into using the keyboard.

kinesis-foot-pedal

The foot pedal is optional; it comes with the Pro but not with the regular version of the keyboard. Its purpose is to let you use number pad keys, when it’s held down. (You can also hit the Keypad button to activate those keys for long term use, or if you don’t have a foot pedal.) It’s solidly enough built to survive life on the floor, and has just the right sensitivity, so you can rest your foot on it without inadvertently activating it. I initially thought I’d be forever getting my foot tangled in the cable, but in practice I’ve only rarely tripped on it.

Installation

As I wrote above, the keyboard ships configured for a Macintosh. As far as the Mac is concerned, the Kinesis Advantage Pro is just another USB keyboard: no special drivers are required. Programmable macros are handled within the keyboard, which has its own memory, rather than by software put on the computer. So you can plug it in and start typing.

The keyboard has a USB port into which you can plug your mouse, and a strange little telephone wire type cable that is used to connect the foot pedal. Kinesis, like every company except for Apple, is aware that some people don’t put their keyboards right on top of their computer, and so they have wisely provided a USB cable long enough to reach your computer without an extension cable.

Getting Used to It

The Kinesis keyboard ships with a small booklet of “Adaptation Exercises” designed to get you going using the keyboard. I don’t want to sound harsh, but the exercises are deadly dull:

afrf aded afrf aded afvf adcd afvf adcd
juj; afad juj; afad kik; fsff kik; fsff
graf olok graf olok bavf kuj; bavf luj;
swsf ljuj swsf ljuj deda lolj deda lokj

is really not the most interesting introduction to using a new keyboard. The adaptation exercises are certainly well-intentioned, and good for what they are, with the text between exercises having a friendly and helpful tone, but a few exercises in, I decided I’d had enough.

Typing was slow, at first, but the only real difficulty I had was the backspace/space issue I mentioned above. The Advantage Pro allows you to remap keys, so I knew I could remap backspace to the Delete key beside it, and then remap the Backspace key to act as a second space key. I resisted only because, hey, I’m reviewing this keyboard, I should subject myself to the “out of the box” experience, at least at first. (Eventually, I gave up and remapped the keys.)

It probably took me longer to get up to full typing speed on the keyboard than it would take most users: I use a number of different computers every day, so I wasn’t able to use the Kinesis keyboard exclusively. That meant I was un-reinforcing what I was learning about the new keyboard every time I sat down and typed at a traditional one. (That may also be responsible for my inability to adjust to only having a space key under one thumb.)

That said, it took about 3-4 weeks to get up to a comfortable percentage of my flat keyboard typing speed. Only for the first week or so was I thinking of the Kinesis keyboard as a hindrance to my typing, where I really had to force myself to use it rather than switch to another keyboard to hammer out a quick document. Let me add that Kinesis recommends that you not try starting with their keyboard at a time when you’re going to have to do lots of work at high speed. That’s reasonable; all they’re saying is, it’ll take a little time to get accustomed to the different keyboard configuration.

kinesis-right

Not that it’s really that different, at least on paper. All the keys are where you’d expect to find them in a typical QWERTY layout. The difference is that the keys are placed in vertical rows, rather than staggered, and that they are in a kind of a concave bowl, so they aren’t quite where your fingers are used to finding them. They’re close, but it takes time to adjust to the difference.

Two things I never got used to, and which can’t really be helped, are these: First, there’s no Enter key on the far right side of the keyboard. With a regular keyboard, I’ve gotten in the habit of keeping my trackball just to the right of the keyboard, and frequently hit the enter key with my mousing hand, without removing my hand from the trackball. That’s something I can no longer do. Also, it’s more difficult to type with just one hand on this keyboard, due to the great separation between the left and right hand keys. If you like to keep one hand on the mouse and type the occasional word with the other hand on the keyboard (as I do when editing documents), you’ll find this keyboard requires a lot more arm movement than a conventional keyboard does.

Ergonomics

My perspective on what constitutes an ergonomic keyboard has been forever altered by the DataHand, which I reviewed some time ago. Comparisons between that keyboard and this one are as unavoidable as they are unfair: this keyboard costs 1/3 what the Datahand does; it is simply not reasonable to expect that level of ergonomic design from the Advantage Pro.

The key press on this keyboard is wonderful. The pressure required to activate a key feels just right, and a sound (quiet, but there, and you can turn it off if it bothers you) lets you know that you’ve pressed the key hard enough to activate it (type the letter). From that point, the key can still be pressed what feels like a good distance. That means that you’re not pushing your finger into something that won’t move: you don’t push the key all the way down. There’s a lot less stress on my fingers when I use this keyboard, and I can feel it.

The left and right hand keys are separated, which keeps you from having to angle your arms in towards your belly button and turn your wrists out. While that’s an improvement over a traditional keyboard, the distance and angle between the two sides of the keyboard are fixed, which is a big negative: not all people are the same size. That means it’s likely you’ll experience some ulnar deviation, albeit significantly less than on a traditional keyboard.

kinesis-curve

The keyboard is higher in the middle than it is on the ends: not by much, but enough to put your thumb about 20 degrees higher than your little finger, according to Kinesis. That’s great, because you actually have to twist your hands to get them into the palm-down position keyboards require. I maintain that ideally, a keyboard would be angled at least 60 degrees (i.e., your palms facing more towards each other than towards the floor), but the angle offered by Kinesis Advantage Pro is still an improvement over the flatness of traditional keyboards.

In spite of the placement of the keys in concave bowls, and their vertical alignment, you still have to either stretch your fingers to reach certain keys, or lift your wrists from the wrist rests and move your arm. This is just what you get with a traditional keyboard, only very slightly lessened by the Advantage Pro’s design.

The benefit to putting the keys in two concave bowls, in my view, is that it places the keys below the wrists if you rest them on the keyboard. That fights dorsiflexion, or the upwards bending of the wrist. (If you have the “feet” out on your traditional keyboard, please, for your wrists sake, get rid of them. If anything, feet should be at the front of the keyboard, not the back, so the keyboard slopes down away from you.)

Bugs

The only problem I had with this keyboard is awfully minor, and only happened twice. I’d come back to my computer after not using it a while, and the screensaver had kicked in. I hit a key on the keyboard to wake the computer up, and nothing happened. Mouse movements work, though, and the mouse is plugged in through the keyboard, so there isn’t a physical connection problem. But it seems as though the keyboard isn’t connected to the computer anymore. Unplugging the keyboard and plugging it back in solved the problem both times it occurred.

Conclusion

The Kinesis Advantage Pro keyboard isn’t the god of ergonomic keyboards, but it is decidedly more comfortable to use than its traditional brethren, and offers some ergonomic benefits. It is Macintosh-friendly, and programmable, with the ability to remap keys and create macros. If you’re looking to avoid developing RSI, or you just want a more pleasant keyboarding experience, the Kinesis Advantage Pro is well worth considering.

Also in This Series

Reader Comments (27)

Lee Bennett (ATPM Staff) · January 4, 2003 - 00:10 EST #1
If you think this keyboard is funky, get a load of the Comfort Keyboard.
John Labovitz · January 4, 2003 - 03:05 EST #2
Kinesis keyboards are excellent. If it didn't exist, I'd probably no longer be in the computer business due to RSI, etc. I've used the keyboards for about eight years now and have gone through several Kinesis models. That's not a slam on the quality of the keyboard; think of the last time you went more than a year or two on the same keyboard!

The biggest advantage of this new model is that it finally has a USB port. For years, you've had to get a PS2- or ADB-to-USB adapter, which worked fine, but added more complexity to the usual USB mess. I suppose the new Power/Eject keys would be nice, too.

By the way, I've owned both the macro and non-macro versions, and never really had the need for the macros. So, if you want to save a few bucks, this is one way to do it.

As for adaptation time -- I remember that it took me two weeks of very slow typing to get used to it. Once I did, though, my typing speed *increased* over regular keyboards.
Mary B. · January 4, 2003 - 22:02 EST #3
Thanks for such honest opinions! I am saving my pennies for a different mouse and keyoard. I am new to Carpal Tunnel and RSI so I am trying to create a reclined workstation. There are tons of ergonomic 'toys' if you want to have a look. E-mail me if you have any suggestions of your own for me to complete my supine workstation! Thanks.

Mary
Hedderik van Rijn · January 10, 2003 - 14:06 EST #4
Note that the quality of the mechanical parts of the keyboard is not in line with the price (or, at least, used to be not in line with the price). Two years ago I was looking for a new keyboard to decrease my RSI problems. I bought a Kinesis Ergo Pro but, after about three months, some keys stopped working whereas others regularly "hanged." Although I did like the keyboard design, after having returned that and two (2!) other Kinesis keyboards which turned out to have similar problems, I changed keyboards again. Now I'm using a Siemens/Cherry ErgoPlus keyboard.

Hedderik
Benjamin · March 13, 2003 - 12:00 EST #5
I have a Kinesis from 1996 and the key quality is excellent (they're all still working). It could be that the new ones aren't as good, or maybe you just had bad luck. I wish the thing would break so I could get a modern one, to be honest. Maybe if I type a bit more aggressively! Benjamin
www.jbrowse.com
Dan T. · April 20, 2003 - 20:41 EST #6
I, too, am entirely pleased with my Kinesis. The only problem I've had with it in the three years I've owned it is that the legends on a few of the keys wore off. One telephone call to Kinesis and new keycaps were in my mailbox in less than a week.

One thing to keep in mind is that the company has "refurbished" models -- usually ones people returned in the trial period -- available for a 25% discount. I purchased a refurb, and could not tell that it had ever been touched by human hands. Refurbs carry the same warranty and money-back guarantee.

I would encourage skipping the advanced macro options -- I've never used more than basic remapping.
Bob Williams · April 2, 2004 - 02:14 EST #7
Stuck or non-working keys were problems that keyboards from a few years ago suffered from. However, it was not a mechanical defect, but rather a firmware issue. If you e-mail Kinesis, they'll give you the details on upgrading your keyboard to modern specs.

Bottom line: mechanically speaking, Kinesis keyboards are extremely reliable.
Robert Downes · April 13, 2006 - 09:06 EST #8
I have just added a new page to my website:

A review of the Kinesis Classic Contoured Keyboard.

The Kinesis Classic is the PS/2 version of their contoured keyboard, but is otherwise very similar in its feature set.
Zach Kramer · April 26, 2006 - 14:44 EST #9
This really expensive keyboard is a treat once you teach yourself to type on it, which isn't quite hard but isn't quite easy either. It only took me a few days of a little trying to get it sorted out and now I can type fine.

However, my keyboard has had a major failure twice in two years. The first time the firmware went bad and they sent me another (via ground shipping). The second time, the right keywell went bad (all the keys on the right side) and they sent me parts so that I could do a complete internal circuitry swap. That fixed it, but was time consuming and if you're not good with tools you ought not try it. I could have sent it in, but I wanted to minimize the downtime.

Kinesis was so skimpy and resistant to helping me the second time (despite my being in the warranty period) that I remain amazed. They should have just sent me a new keyboard. Instead they nickel and dimed my support request by refusing, until I complained and complained, to even overnight me the parts. They then claimed that that's where their responsibility ends and that they were providing good support.

Today I had a third problem which they know about but do not advise you about in the documentation. Sometimes the modifier keys (shift, alt, control) get stuck and to get them unstuck you have to press them both at the same time. Great to know, but I've been having this problem since the day the keyboard arrived and it was only today that I was angry enough to call. So this is a third problem that I've had with my keyboard, which Kinesis will not replace.

LL Bean will replace a kayak that's ten years old and not even broken but cheapskate Kinesis won't replace a keyboard that's broken three times during the warranty period!

DO NOT BUY THIS KEYBOARD IF YOU ARE NOT PREPARED TO HAVE AN UNRELIABLE INPUT DEVICE!!! That's my warning. The typing experience is very pleasant but in retrospect I'm not sure it's worth having to fix the damn thing.

I also forgot to mention that when the circuit board went out (the second problem) it blew out the USB board in my Apple Studio Display. If I could prove it was Kinesis that did it, I'd try to get them to pay.
Marie L · June 5, 2006 - 19:09 EST #10
I was happy to see Bob's post as I had seen the stick keys problem mentioned in several reviews. Expecting a positive response that it had been fixed, I asked Kinesis about the problem and this was the resonse I received:

"We have not done anything different with our keyboards. As with all products, some problems happen to some people that don't happen to others. We are not aware of this being a major issue with our customers. If we felt this was a problem that was significant, we would have dealt with it and fixed it. But we do not see this as a major problem, so we have not done anything different with our keyboard."
Ben S-M · August 10, 2006 - 02:32 EST #11
I've got two Kinesis keyboards, a Classic MPC (PS/2 and ADB, switchable) and a newer USB Model.

I found the older one *extremely* sensitive to being unplugged or attached to a running PC, it wasn't until the second time that I replaced the firmware chip (kinesis was good about sending replacement chips) that I figured out what was going on. Incidentally, this problem never occurred when running in Mac (ADB) mode attached to a Mac, nor have I ever experienced another keyboard with this kind of "sensitivity".

I too have had the problem with modifier keys sticking. (There's nothing quite as annoying as tearing around in emacs and having the control key get stuck!) I hadn't heard about the "trick" of pressing them both at the same time.

The older keyboard has occasionally had the outer one or two columns of keys on the left side stop working spontaneously. This problem generally went away again after unplugging the keyboard a few times or putting it on the shelf for a day or two.

The newer keyboard recently had the entire right key well fail. After fumbling around with an ergonomically unsatisfactory alternative, I decided to try to combine the "working" parts and try my luck:

I installed the right key-well module of the older keyboard in the newer (USB) keyboard, replacing the one that had failed. To my delight the resulting "frankenboard" worked! (Well, it did yesterday, time will tell!)

I took the remaining parts home with me, disassembled it, cleaned everything and put it back together. I'm not sure what I was hoping for, but much to my astonishment, the older MPC keyboard now seems to work most of the time when in ADB mode and attached via an iMate to a Mac. I'll try it again at work in PS/2 mode and see if it's behaving again.

What a saga!

I love typing on the Kinesis. Using anything else for an extended period of time is difficult for me as my hands start to hurt.

I must say though, that of all the keyboards I've used (quite a few), I've never experienced one that's been quite as electrically "flaky" as this pair.
Steve M · October 28, 2006 - 05:06 EST #12
I've had an Advantage Pro USB for a bit over 2 years. I bought one of the refurbished models. It looked and performed like new. I use it at home at least 5 days a week. The only problem that I have is that occasionally when I type "?" the key sticks and I get something like "?///////..." (dvorak layout) All I have to do it tap any key and it stops. I'm planning to buy another, but it'll probably be the black Advantage USB. I bought the pro to get the footswitch. I don't use it much because the number keys are now so much easier to use. I have a couple of keys remapped using the "macro" function since it's more permanent than the remap function (if you switch from QUERTY to Dvorak or back the remapped keys revert to normal, but the macros stay.

I'm completely happy with my keyboard, like I said, I'll be buying another.
Ben S-M · October 28, 2006 - 06:43 EST #13
I'd just like to follow-up on my post from August. Both of my (disassembled and cleaned) contoured keyboards are still working reliably.
Andrew Taylor · June 5, 2007 - 12:33 EST #14
I had an ergo classic before moving to datahands. The ergo was very nice to type on... fast. The real down fall of it in comparison to the datahand was the lack of integrated mouse. Much arm movement is required just to get out of the keyboard. I suggest a trackball (marblefx or similar) to reduce the arm movement as much as possible. It was a nice keyboard, especially when setup at the right angle, etc. The datahands are more delicate, but having the datahands on chair mount is where it's at, as far as I've tried... Mouse always there, always in good typing posture. Quite a bit more expensive, tho it's perhaps not a good idea to consider expense to heavily for something that might keep a computer user using for much longer.
Anonymous Coward · June 12, 2007 - 20:55 EST #15
I am a software developer and I use the backspace and delete keys as much as I use the space bar. I type so quickly that I make mistakes. Just as someone who would speak quickly might mix up his words, I mix up my letters as I fly over the keyboard. The layout of the keyboard is so good that I developed the ability to type almost as fast as a lecturer can talk. I love this keyboard. I hate when I have to switch to a standard keyboard. People who use standard keyboards don't know what they are missing. It is amazing how a well-thought out product can increase efficiency and comfort. Because the keys are positioned in such a way that only one finger reaches them, I never use different fingers to hit the keys like I used to. For instance, prior to using the advantage keyboard, I never hit the v or c keys with consistent fingering. Did I mention that I love this keyboard? The only think I don't have that I need to get is the foot pedal. If these keyboards were not so expensive, I would own one for each of my computers at work and home, and even my laptop.
BoyBawang · July 8, 2007 - 11:37 EST #16
Love: The design is great for me as a 90 WPM touch typist

Suggestion: I wish I can adjust it to tilt up to 60% for a more relaxed wrist. It's currently fixed at 20%

Hate: I hate switching my hands between KEYBOARD and MOUSE too much

Solution: kinesis ROLLER MOUSE!
ROLLER MOUSE is also a product of Kinesis Corp designed to minimize hand switching between KEYBOARD and MOUSE.

Bad news: ROLLER MOUSE is not integrated in this keyboard :( :(
Glenn · July 22, 2007 - 20:32 EST #17
This keyboard saved my career due to having RSI. I have 2 of the Kinesis contoured keyboards and use the macro's extensively to save repetitive tasks. I use them with the Cirque touchpad in the middle since I found the standard mouse causes most RSI problems. I find this to be a great combination. I have had the keyboards for a year and found them to be very reliable. So, sometimes you might have just had a bad batch of keyboards. Also, Kinesis has been very quick to answer any questions and even replaced one of my keywells promptly when one of the keys didn't depress smoothly.
Ria_Absin · September 23, 2007 - 15:31 EST #18
Optical trackball at the middle instead of touchpad is also good. I read that its performance comes close to a mouse and it doesn't require too much wrist movement.

The most convenient location for Optical Trackball in Kinesis Advantage is slightly above the ThumbKeys.. where the least effort to reach.
Toli L · December 29, 2007 - 04:36 EST #19
Bought one of their first units in 1995 (had to leave it behind when I graduated), another in 1997 (my own). I still use the second one. Excellent design --- saved my hands from RSI. Learning time was about 2 weeks. Sticky keys were/are are a problem (depress both to un-stick, or unplug/replug keyboard), one keywell stops working sometimes (wack the middle and it's fine), Escape rubber key on top left got torn and fell off (so I remapped Esc to another key... it's more useful to me closer anyhow for easier access).

Overall very happy: it's been 10 years, and the keyboard -despite its problems that I just learned to live with- has outlasted 5 computers and many, many more hard drives. In fact, it's one of the oldest pieces of electronics in my house and still works: given how much action it sees, that's pretty darn impressive.
Paul · June 1, 2008 - 18:36 EST #20
I'm thinking of buying one of these but some of the comments put me off a little. I wonder if anyone has tried the Maltron keyboards for dealing with RSI issues? Or maybe even the holographic keyboards?
Ken · June 10, 2008 - 17:27 EST #21
I've had the PS2 contour for almost 7 years - and utilize it daily for coding. It's been an amazing component to reducing RSI and making me a better typist. I'm buying the USB/Pro keyboard once i find the right deal, since I've started a new job and everyone's on mac. That's about the best possible review I can give Kinesis.

Details: the learning curve isn't as bad as you think, nor is switching between different types of keyboard. I use the old-fashioned "straight" keyboard on my laptop/commute, a maxim split keyboard at home, and the contour at work. The ESC key is the suck. Remap it to caps lock or something else you don't need much. I haven't had significant "stuck keys" problems, though on my PS2 the shift key does stick from time to time. I just tap it once or twice to make it better. Since I touch type, I'm never looking at my fingers and I don't have the problems some people report (typing many incorrect keys).

Once you learn that your thumbs can type too, you'll resent normal keyboards.

The Bad: Man, using the same keyboard for seven years means that it gets DIRTY. The big gaps between keys means that it really collects detritus. You really need to make a regular ritual out of decontaminating the thing. Also, the printing on my keys wore off long ago, but, since I don't look at them, I don't care. The ESC and function keys are a joke. Don't use them regularly (if you vi, you'll need to remap ESC.)
Benson · June 13, 2008 - 01:00 EST #22
i've waited for so long and until now kinesis is NOT able to solve the issue of constant transfering of my hand between keyboard and mouse! It doesn't take a genius to discover that the wasted big area at the middle is a perfect place for a built-in touchpad! How that's ergonomics!
Tom Goddard · September 25, 2008 - 14:52 EST #23
I use two Advantage Pro MPC/USB keyboards on two Mac machines, and I've had 3 of the older PS/2 connector models used with Linux. Every single one of these got or gets stuck keys (ctrl, shift, meta). This is extremely annoying in the emacs editor. I would have abandoned Kinesis years ago if there were any alternative with as good ergonomics. Very comfortable to use and very flaky with stuck keys.

The suggestion by Kinesis that this is a rare problem is not true. Five out of five of my keyboards from them have had this problem, on different machines and operating systems. No other keyboard I ever used on these same machines has this problem. The Kinesis keyboard electronics or firmware are poorly engineered and you will encounter stuck keys if you hold down modifier keys a lot as with the emacs editor.
Hank Roberts · October 4, 2008 - 00:23 EST #24
I've been using Kinesis (Classic MPC at home and PS/2 variety at work) for more years than I can remember. I open them up to clean them out every year or so (fine brush and vacuum used together first, and then canned air) ; vacuuming from outside just doesn't do the job for some reason. No problems yet.
Jake · October 11, 2009 - 16:30 EST #25
I wrote a long review of the Advantage that discusses the keyboard (nice, but tough to get used to) and some of the research underlying its ergonomic claims. Verdict: uncertain. Like you, I used the keyboard with a Mac.

The Kinesis Advantage Pro keyboard isn’t the god of ergonomic keyboards,

I wonder then: what keyboard is? Or has the God of keyboards not yet descended from someone's mind?
Erik · December 11, 2009 - 23:45 EST #26
I love this keyboard to death, and have used them exclusively at home and work for the past decade. I started on a pc w/ a ps2 model that worked great; ever since moving to the mac w/ usb about 6 years ago I've had the stuck modifier key problem. Every time I sit down at the computer I tap all my modifier keys in unison out of habit now. If there were a better alternative out there, I would buy it, but we're stuck with this for now. If your modifier keys are still stuck after tapping on them, unplug the keyboard and plug it back in.
James Parsons · June 11, 2015 - 13:06 EST #27
I loved this keyboard, but it's just so unreliable. My first one became flaky after less than a year, breaking within 3 years. The next one arrived broken, needed to be unplugged and plugged in every minute. I give up on this company and these keyboards, no matter how comfortable they are. They should put more care and attention into QA, you don't wanna spend $300+ on a keyboard and have it arrive dead.

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