Peter, sorry your having issues. I'm sure things will work out for you in the end. I've read lots of rave reviews on the new Onkyos, so your feedback is a bit puzzling. I have not read this entire thread, but were these harsh results with Audyssey engaged? If so, my guess is the calibration, mic placement, or number of locations was done wrong.

Anyway, I know what your saying. Sometimes you just don't want to spend a lot of time getting something to work. Reminds me of the problems I had with Emotiva. The only difference is I gave them 3 months of screwing around with me before I said enough is enough.
M80s-VP180-QS8s-EP600-2xEP350 Denon3808 Outlaw7700
(M22-OWM22-VP100)-all in storage