The last mouse served for 7 years, there were no questions to it at all. But there were double clicks on the keys. Bought the same model a couple of months ago. There are no questions at all. It is just perfect in terms of price, quality and ergonomics + ease of use. Got pros: The mouse is just perfect for everything. Both for games and for simple computer use. Will serve faithfully for a long time. Its cons: Over time, if handled with dirty/sweaty hands, the case becomes untidy. But just clean it up and it's ok.