I liked it very much for the first two months. Definitely made the sound field seem more enveloping. However, it suddenly started setting things all wonky. The worst part of this was that it clobbered the human vocal range, setting most of the speakers to -2 to -7dB or more. The net result was to make the center channel sound hollow and tinny.
Randy has suggested resetting the microprocessor which I wont get to until this weekend. I hope it works as I liked how it seemed to make everything blend together better.