Excellent keyboard if you do not mind the lack of number pad and function keys 1-12. The red switches feel rather "toyish" in comparison to the blues and browns but they do feel nice when you bottom out. The sound is very minimal if you add O-Rings or Dampeners. The size was really the selling point for the keyboard. I carry it to school with a 14" Allen Company Knit Gun Sock. It is absolutely better than the rubber domes at my school and looks very impressive in comparison. The only con I have about the keyboard is not particularly about the keyboard, but the switch. Red switches feel very "toyish and flimsy" in comparison to my Das with blue and brown switches.
I do recommend this keyboard.

Here is a picture of my KBT Pure:

http://oi49.tinypic.com/im8ahx.jpg

Originally, I was going to give this product a 4 / 5 because when I received it, it had a broken keycap. Fortunately, the guys here at mechanicalkeyboards.com responded pretty quickly and said they would ship out a keycap for me immediately. They forgot to do so for two weeks then I reminded them and it was here in 2 days. They keyboard itself is nice though if you are into coding and the such beware as it is difficult to naviate with the FN-arrow keys. I would have really liked the option to be able to switch the firmware to the KBC-Pure layout where the FN-arrowkeys are in the corner, rather then in the middle of the letters. The keyboard seems sturdy and the compactness is awesome. A great keyboard if you find the extras unnecessary.