I found the wedge mouse uncomfortable and unreliable. It worked on a mouse pad and some material but didn't on my khaki pants leg or the couch. It also got misplaced a lot under newspapers, papers and such because it is so small. The only upside was it packed well. I just got the MS Bluetooth Sculpt Mouse yesterday and it is a real improvement. It is much easier on large hands, is very comfortable, and works better with Win 8 on the SP. The SC also works on my khakis. The Windows button is much easier to use when musing than letting go of the mouse and hitting the screen. Tilting scroll wheel is very natural too. From here on the Wedgie is a travel-only mouse.