I have received great results using Audyssey, but then I've said that before. It is clear when you cycle it on/off from the various seating locations that it makes the already great sounding Axiom speakers even better, and I use multiple subs which is iceing on the cake.

M80s VP180 4xM22ow 4xM3ic EP600 2xEP350
AnthemAVM60 Outlaw7700 EmoA500 Epson5040UB FluanceRT85