This is exactly the step above a basic mouse I wanted, thumb buttons for mapping in games are great. I haven't used it long enough to rate the battery life, but ergonomics are good for lifting/resting with a good weight. The lower thumb button for Windows key was not necessary and disruptive in a game, but if it can be remapped should be alright. Only issue with it is a lack of forward thinking on a person's daily use: you pick up the mouse in your right hand (right handed mouse) turn it over, look at the switch and switch it On with your left hand... then BAM, laser in the eyes because of the position/angle of the laser emitter. I'd have preferred the laser emitter/reader position was mirrored. Not enough to downrank it a star because it is easily compensated for after it happens a couple times.