I have one! Impulse buy over Christmas and it is certainly quirky but that's no bad thing imo.
The top cover completely covers the bottom, which is a good deal more substantial, the top does feel a little lightweight in comparison and you can only see the bottom colour under the board.
But overall I find it a substantial and unique board for $140 delivered, maybe best not with SA profile though, my only real issue is as reececonrad says:
Also, I have an IGK6x aluminum case that flares out like that on the sides and the back. I know it shouldn't be a big deal, but it makes the case really hard to pick up and it just feels weird.
Slips right through the fingers when moving it around the desk, anyway here are some pictures for your perusal/amusement....