I've been using the receiver for about a week now, first with a venerable set of Polks (the RM6800 series) and now with RTi's and an SVS sub. This setup definitely excels with music and television, though it leaves something to be desired with music. Who know, though; maybe there's a break-in period for both the AVS and the speakers.
Given that my use is about 90/10 in favor of film and television, however, I'm not dissatisfied. Musically, though, this setup is probably only a step and a half above the RM's with my old Onkyo receiver. A lot of mud and noise at higher volumes, though I suspect that the SC-67 lacks the oomph to power the RTi10 fronts/RTi5 center speakers. The Apple Airplay feature is nice and convenient, though I listen to mostly metal and progressive, for which this sound system offers no justice (maybe it does better with some softer types of music such as classical and jazz).
The SC-67 sounded pretty good right out of the box. The Flight of the Valkyries scene in Apocalypse Now was truly impressive. I couldn't believe how it pushed the older RM speakers. They never sounded so good. That the RTi's are a letdown (at least with metal and prof) illustrates that the Pioneer elite does not have the power to push these speakers. If you're eyeing a Pioneer Elite receiver and you like pounding rock music--well, you will likely need to use the Elite as a pre-amp only. The unit's sustained power is decidedly unimpressive.
The SC-67 is a deep, complex receiver. Unlike other reviewers and commentators, I don't find the interface confusing or unintuitive. It's pretty damned straightforward, in fact. There's even an entire chapter in the manual--the manual that Pioneer doesn't bother to print, by the way--dedicated to HDMI functionality. Speaking of which, I've run into some glitches with this receiver. Pioneer recommends using high-speed HDMI cables. I have to admit that I'm not using entirely high-speed cables. At times, when switching channels, the sound disappears. Quickly rectified by changing channels again (or powering off the receiver). I'm starting to think that this whole pray-at-the-altar-of-HDMI is just nothing more than blind faith, or the shepherd herding his flock to doom. I'm thinking of just reverting back to composite cables for video and digital coax/fiber optic for sound.
That would probably be my loss because the SC-67 does one heck of a job of improving the picture quality on my Panasonic plasma. Very impressive video upscaling, even for non-HD channels.
What about MCACC? Well, I tried it, but it's difficult to rate a thing when you don't set it up correctly. Lacking a tripod, I placed the microphone on the back of my couch. Mistake, mistake. I'll take another look at MCACC once we move into our new place. And once I get a tripod.
There have been some complaints about Pioneer's remote control, and I would like to second them. The buttons are small and cryptically labelled. I don't know what half of them do, honestly. But, really, there are only a few core things you need to do with with an AVR remote, and it handles the setup menu quite nicely. Thus, I don't think a bad remote is a deal-breaker. I don't mind handling four or five remotes, either, so I have no intention of programming this one to control my other components. To me, universal remotes have little to no value anyway.
1) Nice clean sound, particularly for HT.
2) Plenty of options.
1) Grossly underpowered--and underwhelming--for rock/metal/progressive music.
2) Constant HDMI glitches (maybe these are my own doing and Monster should get more of my coin for their exorbitantly expensive high-speed cables)