After some months of use the performance is always with go any speed problem plastics and paints do not move, taken in good hands even for games that require the speed (Battlefield 2 and 3 medal of honor). Lack of reinforcement for the cable but this one does not move. The finishes of this mouse may have a rough but very good value for money !! I recommend taking a mouse pad for precision use. Delivery always fast and well packaged by amazon.