My Logitech AnyWhereMX who passed away after a valiant years of service, I turned to this brand for the first time since my budget did not allow me to buy me Logitech currently. I must admit that so far I am pleasantly surprised by the quality of this Perixx suitable, quite acceptable. More than correct grip (worse still that AnyWhereMX), the mouse just for myself tend to be too unbalanced slightly backwards, which sometimes causes some worries gripping, but nothing prohibitive and that's really what we ask it. Fortunately, the materials are not in his plastic disgusting to glaze, confusing and that make you sweaty hands dripping in under 2 and gives a result in the opposite of what one expects of a mouse. Aesthetics not indifferent, in one way or another, for my part I adhere even if the gamer side is a bit too much for my taste. It is unfortunate that the dial is used to change the resolution does not allow for example to trigger another function on the PC. I end these 4 stars deserved that I hope will remain for a few pairs of years!