I was as skeptical as could be regarding a wireless mouse, but this thing lasts me a week on a 2 hour charge and has no latency at all. I've been using it religiously for CS:GO and Dota 2 and have had no problems at all, I haven't even wanted to play MMO's lately because my MMO mouse feels so dated next to this beauty. I see people complaining about quality, I've experienced damaged goods and early breakages from Logitech myself but the support I've received has always been flawless, I wouldn't hesitate to purchase from them in the future.