No complaints about the price (pretty decent less than 13), or quality. The latter really being at the rendezvous. This mouse is very precise, does not make jumps, employment is very nice. But does it not necessary it is a little. Despite my average stature (~ 10cm less than the average French) and my petite hands, it is too low and too wide for that long manipulation does not irritate me the carpal tunnel. It's a pity, a small cm more in each dimension would probably suffice to propel one or even two stars.
Did I mention that this mouse three standard buttons works perfectly without special driver under all Unix including Linux? It's the least we can expect Needless to say, but even better in explaining.