I was initially attracted to the Classe as well, because of the former Proceed group. The one glaring omission in the Classe is lack of room correction processing. Am I wrong that it is not offered?
By the way, I would be interested in whether ATI/Theta have discussed anything like room correction as well. I believe an Audyssey standalone unit can be purchased, but, last I looked, it was $2500 MSRP, and ostensibly required an Audyssey-Certified installer to do it (though Kal Rubinson of Stereophile, who posts on AVS, wrote that he was proof you didn't really need the installer).
I have to say--the biggest positive change I ever heard in a processor, was when my former Lexicon MC-12 went from having no room equalization, to having it. It's a fairly radical improvement, and you sometimes need to disabuse yourself of certain listening preferences--preferences you actually derived from learning to like what the room was doing to the sound. However, once you listen to even-familiar music with room eq, you hear things never heard before.
If the Classe has Room EQ, it should be a serious contender. If it can only be attained by purchasing an Audyssey unit standalone, well, that's at least $2500 that should be tacked on to the price of the unit.