The Kinesis Advantage, Unicomp Space Saver, and Das Keyboard, two years later
jseliger.com
jseliger.com
I presently own two Kinesis Advantage keyboards; one I got in 1999, the other in 2000. The one from 1999 has run since then with absolutely no issues, and I have not been gentle on it in the least. The keys are still accurate and responsive, and the only trouble I've ever had with it is when I spilled a bit of water into it (it dried out and everything was fine).
The other Advantage hasn't quite been perfect: one of its keys drank a bit of soda early in its life, and since then it's been problematic. More recently, another keyswitch started to die, either being unresponsive or bouncing badly (3-10 detected keypresses for one actual keypress). I sent it back to Kinesis and they replaced basically every key on the keyboard (replaced the left and right main panels and the left F-key panels; the top right panel was fine). The cost for this repair was $80.
Now I have basically one brand-new and one 11-year-old Kinesis, which gives me an opportunity to feel how they wear over time. The new keyboard takes slightly less force and the keys bottom out more crisply, but on the whole I'd say that typing on the new keys has not made me at all dissatisfied with the feel of the old ones; in fact, the one with the older switches is on my desk at work, and I use it at least an order of magnitude more than the one with the new keyswitches.
On the whole, my experience with the Kinesis has been excellent. Comfortable to type on, amazing position for the modifier keys, respectable longevity, and excellent customer service will keep me a Kinesis customer for the foreseeable future.
Both keyboards are still going strong with very heavy usage. Like you, one of mine drank som soda several years ago. I disassembled it, cleaned it as well as I could, and reassembled it and it's still doing great to this day.
People look at me funny when the see the AT connector on the keyboard attached to a PS/2 adapter, attached to a USB adapter but I wouldn't trade my Kinesis keyboard for anything at this point.
I'm very much a fan of buckling spring, positive keyclick switches with the famous tactile feedback. There is absolutely no uncertainty that a key has been engaged and one of the effects is that you don't use as much pressure or resort to the temptation to mash keys; it could help prevent RSI. If you're a touch typist they are fantastic.
The only real downside to me is the noise they make; it's fine if you're in your own office but in an open workspace I doubt your colleagues will appreciate the noise-- in heavy coding mode they sound a bit like warfare.
People often comment that the Unicomp is loud, but no one has complained. More like "that's legit."
------------------------
1. http://geekhack.org/showwiki.php?title=Cherry+switches+and+b...
My ideal keyboard would have the Apple chiclet mechanisms in an Advantage layout, but unfortunately that chimera is unlikely to ever exist.
I did get one for use at work, though, and love it. I like it because it's a good combination of tactile and still quiet. Mine has variable weighting on the keys, which is a mixed bag. I guess some of my fingers are stronger than they otherwise would be - I find myself bottoming out keys with my left pinkie occasionally.
http://elitekeyboards.com/products.php?sub=leopold,tenkeyles...