This is the 3rd I buy: not as the previous two had ended up letting go, on the contrary, they are always operational. It's just that I equip the whole family with so I think this mouse is quality. The price / quality ratio is just very good, the mouse seems pretty solid, it can "tune" to give it the weight that suits us. The buttons are easily accessible, even in absolute stress moments :) Woven cord wrap avoid / get stuck everywhere. The software that comes with the mouse is a simple / fearsome efficiency. Really no complaints.