As far reliability, it looks like Yamaha has been a bit better over the last 5-7 years. I saw problems with a few Denon around 2012/2013, but nothing since then. Most brands had HDMI board problems, Yamaha didn't. Most brands had vTuner problems, Yamaha didn't. I think Audyssey does more and the Denon AVRs are a bit more flexible when it comes to setup, but I haven't done this with many Yamaha since I only recently added that brand to what I sell. I'll know better once I work with more of them.