I just received this morning, and I can already say that it corresponds completely with my expectations. I went from a small optical mouse genius (tiny mouse so after a while I have to say it hurt hand) to the one standard size. Very comfortable, I found great, especially at the dpi setting, I used a quick mouse, so this one suited me; The only small problem is that the click of the two main buttons (left and right click) are a little loud for my taste, but the other buttons are very quiet so it compensates we can say ... Roulette is also silent so good point! In short, a very good product for its low price.