I've just started using QC and I think this guy has so much potential.
One combo I really like with him is B21, dash, B21, Dash, B11, trance, trance, B11 medium rune trap. Does about 38%. If you forgo the second trance and go in for a jp, you're adding another 3% and of course, if you use a EX Rune trap, you can get damage of 38-45% for a nice medium screen combo.
My only gripe is, the character feels a bit...gimmicky. That might be the wrong word, but I find most people don't know how to block his B3, 1+2 or F121+2 and I know he can be a rush down beast, and I know he is about the mix up, but I wonder if im winning simply because people dont know how to play against him. He has so much stuff. I think his rune traps are great...his projectile is the only thing about him I don't think is that great, but other than that he seems a pretty solid character that can be played quite well at most ranges.