This mouse is truly brilliant. The design is flawless: the clicking open and closed is very satisfying, the build quality feels sturdy and reliable, and it's very comfortable. The haptic feedback on the touch scrolling is perfect - if a little spoiled by the inconsistent scrolling experience generally in Windows 7.

It's very difficult not to give this thing full marks. My only real gripe is that sometimes the way I hold it means my fingers are quite far back on the left and right buttons, so I either have to adjust my grip or press a little harder.

Oh, and it should have been Bluetooth-enabled. Other than that, this is by far the best mouse I have ever used.