Bought this for my husband after his last keyboard was ruined. Note to self: keyboards will not survive being spilled on by a sippy cup full of milk!
The ergonomic design is very comfortable. Nicely shaped, keys work well, hot keys are great. The palm rest is lightly padded. Great keyboard for helping reduce carpal tunnel syndrome.
Would definitely buy again! (But we've been careful to keep the sippy cups away from the keyboard, so hopefully this will last for a good long while!)
Click the link below to buy it at Amazon:
Microsoft Natural Ergonomic Keyboard 4000
Update: May 2014
No spills on the keyboard and it's still working great! Love it.