I own this keyboard. while the design is great, it's very cheaply made. It feels like if you type too hard one of the sides will fall in. For the amount they charge I would expect better from the product.

Also the middle keys are treachorous for your wrists(twisting back and forth if you use them frequently) Their solution? Find a seperate keypad which is like 30 extra.

Also kind of fritzy. I've had to unplug it twice now to kill some erratic behavior.

While it's good for rsi/cts it's very poorly constructed, but it will take away the pain if you type quite a bit.

Also takes a bit to get used to, not quite as easy as they say(I know i've tested quite a few ergo devices, this was the toughest to get used to)