Some additional random thoughts on the 5308:
I haven't had any more bad behavior since I did the processor reset and re-did all of my settings.
I ran a second firmware update. The first one a couple weeks ago lasted for about 3 minutes and was called, I think, "Ether WP". This new one ran for 39 minutes, during which the display said "Main Firm", "Sub Firm", "DSP1 Firm", and "DSP2 Firm". I could have these wrong since I didn't write anything down.
I don't notice any differences after the update and the web interface is still unusable, though apparently I'm the only person here who's tried it.
There's an audible "thump" from my sub whenever it's switched off, either due to muting or changing surround modes. It's a little annoying.
The speaker binding posts are really nice looking. They make me want to get fancier banana plugs.
An effective way to clean fingerprints off the front panel is to use a small amount of lens cleaner on a microfiber cloth.
I agree with others who've said the remotes aren't great, but I have a Harmony so I don't have to deal with them.