I had read the SteelSeries QcK and have accessed here just once and was not disappointed. The mouse pad makes a qualitatively very good impression. It is huge (as ego wanted) and feels good. My Logitech G502 Core Proteus operates on first subjective tests even significantly better and more accurate than on my old SteelSeries QcK. The SteelSeries mouse pointer with minimal movements is sometimes stopped, that does not happen with this mouse pad (probably by slightly different surface structure). Would buy again at any time :)