[This review was collected as part of a promotion.] This mouse does a very good job of responsiveness of the buttons and has a nice ergonomic design. The feel of the mouse is my favorite characteristic of it. The battery life is great too, which is a huge plus! At first I thought I would like the colored light of it, but when using it I find it a bit distracting. So i'll be disabling the color mode. a very good mouse to choose and and happy with it overall!