The only drawback is the relatively rapid wear! (See photo) After about 1 1/2 years relatively heavy use, the surface of the pads on the contact surfaces of the mouse (Logitech G9x) badly worn and the mouse comes to a halt here. In principle, the pad is no longer usable so. While it could be to accept that it is no longer as good as slides at the beginning, but as it has slides to the non-damaged parts after-as-before super man not even mouse feel more.
I vacillate between four and five stars for this Super Pad, but the ratio price / service life for me is not 100% "ok" (then 25, currently 20). I am now just tough and are four! Makes it even cheaper by 5, then goes to the low life in order and also a five-star rating.