Yeah... Basilisk II is stupid-fast on any semi-modern PC. (Heck, I think it's faster than WinUAE!) And, really, Basilisk II could be called ShapeShifter 4, anyhow. I'd say it's the logical continuation of what to run.
I've never had any problems with it. The only thing that sucks is there is even less Mac 680x0 software than Amiga 680x0 software, nowadays! :-P