Feel is a personal thing, but I'm sure they'd be pretty workable. I've got a pair of demo heads, the CB1 and MB, and seeing how the CB2 is more of a muscle-cav, I'm sure they'll be a pretty workable head, with more forgiveness than the MB's (but obviously not quite as much as the CB1's).

IMO, any time you can get your hands on SMT gear at a good price, you can't say no.