I have been using the K63 wireless keyboard, lapboard and Dark Core pro combo for couple of months. Works well, underneath is real nice padding so do not feel it on your lap, gone 6-8 hours recently with Pathfinder sucking me in and charging is easy. Only thing I do find is on the edge, having pillows is helpful as your elbows otherwise just dangle, more so on the mouse side, putting level pillow there helps on the wrist.
But yeah loving mine, now moved to big screen gaming on large TV, before was just controllers with pads, but now with combo pretty much everything with it.