Here is my 2 cents. I have M60s, VP150 and QS8s so I can't comment on the 4 ohm M80s. I have owned 3 pieces of Emotiva gear. An LPA-1 amp, LMC-1 processor and an XPA-5 amp. I have enjoyed all 3 pieces and have never had an issue with them running hot or shutting down. I have had to send in the LPA (which I have since sold) and the LMC for repair but will say that their service has been similar to Axiom's at least for me. It was quick and so far there have not been any more needed repairs. The XPA-5 works great with the 60s. Personally I like the gear but I'm not 100% sure with the quality yet. The XPA has been flawless but I've only had it about 9 months. They have a 5 year warranty so they do stand behind their products.

All in all, I am positive for Emotiva and plan on purchasing more pieces when they are released.