I have a black KG361 with Campagnolo Centaur groupset and Campagnolo Proton wheels. Great bike - good handling, fairly light (but not the lightest), fairly stiff (but not the stiffest) good ride. Still comfortable after a 200km ride. The tube geometry is relaxed so makes for a good comfortable setup (for me). I just couldn't get comfortable on a Giant for instance.
They certainly are good value frames at the moment as Look have bought out a new model.
I was 83kg when I bought it (I've riden it so much that I'm 75kg now)!