I have the wedge mouse. I like it because it is Bluetooth so I don't use up the USB slot. I agree that the wheel (scrolling) could be better. Also, if you plan to game with it, it won't let you use both buttons at the same time. For example, you can zoom by pressing the right mouse button, but then you can't shoot by pushing the left mouse button because the right mouse button is also pushed. Bummer.
I will keep using the wedge when working because I like the small form factor. I will get another Bluetooth mouse for gaming.