Favorite mouse shape (used G Pro since launch). Mouse clicks are a bit heavier than a pro, middle mouse click is lighter, scroll steps are sharper, and side buttons have a slight travel. The wireless connection also seems to be just as good as the wired one on the Pro (with a range extender mounted on the back of my desk). The addition of another mouse foot in the middle of the mouse's spine is also a nice touch. When you buy this mouse, be sure to use lithium batteries! They are lighter and last longer, albeit slightly more expensive than alkaline batteries. -1 star because there is some sensor jump when shaking the mouse, which was not the case with my G Pro. I can live with that if it means getting rid of the wire. (This will depend on the luck of the draw I think, test devices didn't have this rattle)