Uh oh, so overhyped?
I am perfectly content with my system. So I wasn't interested in paying for it. Oh well.
I made some adjustments to the room curve with the app and took before and after measurements with REW. There appears to be no difference whatsoever between the 2.
I might be doing it wrong, it might just be buggy because it's so new... and I can't get much in the way of support either. Marantz was useless when it comes to the app and Chris K with Audyssey didn't seem to have an answer. He hasn't replied to my last couple of posts.
As HD was good enough to dig it up, I chronicled my journey in detail in my Audyssey app thread.