I think I'm pretty content with the setup that I've done to my AVR. As John has said earlier in the thread, maybe I would accidently hit some random button later and the sound would improve hundreds fold.
As for Denon's manual, they probably paid some high school kids to write it.
It would improve the manual even if they have only added list of words/phrases and the pages where they're on at the end of the manual. Often times, I'm looking for something ie. Dialog Normalization, User Memory, etc. and had to flip all the pages carefully just to find them. If I could have just refer to the back pages and see which pages I can find them on, that would help a lot !