Edit: Based on the reviews I just skimmed through, and also some feature showcases on Blue Cat's own site, I'd say they seem to be very good indeed. I wonder why these have been off my radar, they have even been featured in SOS and everything. Oh well. Need to demo it during two weeks, I predict more tough choices for the summer...
Edit #2: And yes, thanks a lot on the Z3TA+ tip! I'm trying to decide whether I really really need it, but it's a stunning price for an already classic VSTi.