there were few negative opinions, I but this set was very interesting and it is nothing else comparable in these dimensions have ego ordered anyway. the processing of mouse and keyboard I think is good. particularly the va back is very elegant. I play so regularly Skyrim and can say it is suitable for games (FPS, I play not). However, the keyboard has sometimes short dropouts thing that strikes me while surfing the net. and that at a distance of 1 meter to the receiver. but it could also be that the supplied batteries were not fully charged. have not yet tested it.