An inevitable negative point I have, and that would be the ablößt the QcK + (like almost every Softpad) at the edge; this but only if you are daring even it.
What would I personally still like would be if instead of 45x40mm any 55x35 or something in the direction
because I liked oblong Mouse more, and this is almost square.
SteelSeries is not my favorite companies, but the mouse pad does its job, and the good!