Pros -Compact layout with number pad,arrow,home/end/pgup/pgdn keys
-Dedicated keys for volume
-Solid and quiet key.
-not a grease magnet surface
-Micro usb receiver.
-Can handle 6 simultaneous keypress
Cons -Reduced keyboard area (from esc to enter key) is about 3/4 in narrower due to squeezing an extra column of keys
-fn key location.
-A bit "flat and low", but that can be easily fixed with some padding.
Summary Plan to get a couple more for small office use. Been burned with keyboards that have the layout I want but when I get it, it feel like junk or some other weird issues. In the case for this keyboard layout, I had the Kensington Ci70 which worked well, but bad wireless. Also the Logitech K360, which has wobbly smaller than usual keys, and fingerprint and dust magnet.
Keys: They don't feel "hollow" or wobbly. Contoured keys are comfortable and compliments the non-slippery key surface (I have a Logitech K800 with the nice contoured keys, but the surface feels slippery)
Keyboard Surface: Some micro-textured plastic that doesn't get full of fingerprints easily. Compact and solid feeling.
note: I ran in to other versions of lenovo's "chicklet" keys keyboards and they are not up to par with this version. This one feels much more like what's on the thinkpads. I hope they make more with this level of quality.