I’ve never owned a mouse this light. I do have to say that it is a welcome upgrade to my gaming. My tracking and movement in games feels smoother and more responsive. The battery life is actually pretty decent (I use the mouse at 1600 dpi) and will go a a two weeks or more without me having to worry about the battery life. I do wish the mouse came in a slightly bigger model as my hand is a bit to big for the mouse, but it hasn’t been to much of a huge issue. Also the side buttons are capped at 2, but it didn’t feel like a huge compromise although 4 would most likely be a better choice. Overall I truly enjoy the feel and weight of the mouse. Oh, and as for the packaging of ATK, let me just say that they do their packaging right!