I will use it at customers houses where the system is in a livingroom, no acoustic treatments, non optimal setup, all the things that plague most peoples systems. It sometimes helps, but there again, I’ll double check settings and sure enough levels as far as Audyssey is concerned are off, always off, not just once in awhile. This has been fun but im done, i get a headache having to prove my point, im too smart, too old, and most of all…..my system is wayyyyy better than anyone here hahahaha im going to make some popcorn for me and the others here, cheers boys