Good on you.
I was doing REALLY awesome just recently! Had a clockwork knight with maces and smithing and tinkering and shiz. OMG The CK's Rocketpunch is WAAAAY OP to start with: One-shots just about everything on the first two floors. Also useful for shoving stuff around/out of the way.
Ironically, that's what actually ended it for me...
You know those switches which teleport you around the place? Yeah, well, I accidentally rocketpunched the switch off the little island I'd just got to using it, and was stuck. D: