[SloopJon]

Having admired the Kinesis Advantage from afar for years, I got one from Massdrop. I've used it at work almost exclusively for the last couple of months, having previously used the wireless Apple keyboard (the small one).

Biggest peeve is that I frequently hit the arrow keys on the bottom row by accident. Not being very good at using them on purpose, this completely throws me off for a second or two.

Minor annoyance is that the modifier keys sometimes stick. I don't think they're physically stuck; more like a firmware glitch, so that it's as if Caps Lock is on (mine's remapped to Ctrl), or I get accented characters as if Alt is stuck.

I still have trouble switching between the straight matrix layout of the Kinesis and the staggered layout of traditional keyboards, which I continue to use at home. Nothing major, but definitely some reduced accuracy.

So my experience is decidedly mixed. I'll keep at it until the end of the year at least, but I'm not convinced it's any better ergonomically. In fact, I've had some soreness in my left thumb that may be related to the new keyboard.