The early Arcam 600's had some glitches. I had one, but never had an issue. Still, I know they were there. The problems were addressed with firmware updates, and they seem to be excellent now. I have not had any issues with any I have sold. To answer the OP's comment about better 2 channel, certainly there is. For the person that wants everything in one package, it's awesome. If you are on a quest for the "holy grail" of 2 channel, and have the funds, I would look elsewhere. As far as AVR's go, it's darn hard to beat. I won't say one doesn't exist, but I have not used, or heard one myself.
***dealer disclaimer***