Here is a somewhat interesting comment made on avsforum today, concerning MCACC vs. Audyssey.Link
Quote: "There are some of us who came back to MCACC from Audyssey. For me it was the sterile SQ with the audio from the mains and center channel that I didn't care for. No life to it! However, I do use a SVS AS-EQ1 (with Audyssey) for the subwoofer(s) EQ with success. MCACC was designed by those in the studio business (Air Studios) and Audyssey was designed by software designers."