A cool mouse for games (MMORPG) and for work. All buttons are customizable. The G-Shift button takes some getting used to, I bound a key on it from the keyboard, because. I don't need its main function. Initially, the mouse turned out to be too heavy, carefully unfastened the legs, under them there were 4 screws, disassembled, unscrewed a couple of weights inside. Now this is the perfect mouse for me.