To be quick - I am just using the damn set up a lot. I have no (significant) regrets from going dual-purpose HT and music. It sounds as good as I can expect for music, and amazing for movies. I find myself using it with Dirac (similar to Audyssey) 95% of the time. I also have a separate set of filters I can use instead for music, and about 4 levels of stereo (reference stereo, direct, stereo and one other I forget). Overall very happy - but I need to add pictures of the Dirac and REQ software in action, etc, and I could not today as I was engaged in a Netflix binge watching extravaganza.
So far I have the fronts cut over at 40 Hz. Hoping to add side speakers that can go that low so I can cut them off there as well. Stay tuned!