I put 4/5 with the value for money, in fact, in this price range I think it is no better, excellent laser mouse with programmable macros embedded memory, high definition (up to 6000 dpi for thirty euros is exceptional), 3 levels of possible settings IPR polling rate adjustment up to 1000Hz, super stylish, very good grip buttons stack fall under the fingers, the material is very pleasant She has all the qualities of a great brand gamer mouse twice as expensive .. One and only downside for me yet do not have large hands it is a hair too small my hand is not in contact with the back of the mouse is the only problem I noticed .. Now everything will play out-it's about sustainability it will hold more than two years? god only knows ..