I enjoy the ergonomics of the key board, but one feature that I also love is the quite touch keys. Well they all are quite except the SPACE BAR, the most used key of all! It's some how seperated from the rubber spring pad under it, so every time I press it, it makes a loud clicking noise. Well the space bar spans both left and right hand sides and, in my case, only the right side of the space bar clicks, so I've slowly been learning to use the space bar with my left thumb. This may not work because I've spent so long using my right thumb. The fact of the matter is, I shouldn't have to make these exceptions. Don't be gutless like me and make sure you return your keyboard if any of hte keys make clicking noises.