Oh I'm not selling it short. I'm very pleased with the result, and it also sounds good. At most I might fine-tune the bass so that there's a little bit more oomph, because as you said, THE MORE BASS THE BETTER!!!!!
(which is why someday I'll add a sub, just not in the short-term as I first need to recover from spending all this money on speakers + AVR).
And yeah, I love the Yamaha apps. Very stable and smooth on Android. I use it all the time to turn on YPAO Volume + DRC for late night TV watching, or to raise/lower dialogue volume. Honestly, the only thing it's missing is direct control for Lip Sync as it drives me nuts that depending on if I'm watching Netflix or HBO GO, or streaming through Plex, I keep having to adjust Lip Sync (and I'm very sensitive to it, drives me bonkers when audio is out of sync with video). The Denon/Marantz apps are very crappy by comparison, and the NAD apps are non-existent (well there is BluOS I guess).
If I ever go the Pre-Pro route, I'll get the Yamaha A5xxx and a Monolith amplifier, or something like that. But that's at least a few years away, maybe if we ever finish the basement as I'll then pretend to my wife that WE NEED MORE POWER!!
One question, do you think those dips in the bass response around 100hz could be solved by using bass traps? Or would only repositioning the speakers solve that?