I also picked mine up yesterday from Sound Advice (ie Tweeter Florida) which I preorded a week ago. Took me a while to switch out my old Yamaha DSP-A1 and recable everything. The good news is because of the HDMI support, there was a lot less cables to connect. The components I'm hooking up to it are:
Sony 60" HDTV (connected via HDMI (video in) and optical cable (audio out))
DirecTV HD Tivo (connected via HDMI)
Yamaha DVD-C950 (connected via HDMI)
XBox360 (connected via component and optical cables)
Playstation 2 (connected via component and optical cables)
iPod 60GB video (connected via included iPod cable)
Because three of my devices are HDMI, my cabling was greatly reduced. I have all video throught the HDMI cables.
I am mainly going to initially comment on features and not so much audio or video quality.
I ran the MCACC auto setup and I would have to agree that it worked great and correctly identified all of my speakers (I have a 5.1 setup). Definitely sounded better after running the setup.
My initial impressions are very good and I really like the unit. One of the features I really liked was the ability to rename the inputs to whatever you want, so now instead of just saying SAT, the receiver actually displays HD Tivo. Same with my XBox 360.
The one thing that was really happy about was that both my HD Tivo and my DVD player was successfully passing all digital audio via HDMI cable. I tested normal audio, Dolby Digital, and DTS and it all worked great.
One of the things that I was greatly disappointed in though was the OSD. I really thought that the unit would display certain information on screen, such as volume levels when raising or lowering the volume, or which device you are switching to. It does not do this unless you have a Pioneer Plasma and use the SR+ function. Even worse, some of the settings under AV Parameters are also not on screen and you have to use the units display to configure these parameters!
The only thing that really was on screen was the Setup menu. The Setup menu does work through the HDMI.
Since three of my four video devices are already HD (my DVD player is an upconverting DVD player which also has a Faroudja chip), I was not really able to really test the units upconverting capabilities. My only non-HD unit is my Playstation 2 and I already use that anymore. However when I get a chance I'll test that out and see how it looks. My iPod is also non HD but since it even lower resolution than low res (320x240), I really don't think the Faroudja chip is gonna do much for it ( I rarely hook it up to video anyways).
On the subject of the iPod, I really haven't tested my iPod out with the unit, but long term I plan to leave the iPod hooked up to my Xbox360 anyways since it had much better and eaiser to use naviagation and very cool visuals.
I'll go through the forum and answer some of the questions posted out there. I'll also post more comments as I use the unit. I really only got to hook it up and get a basic feel for it last night and did not get to really dive too deep into the unit.