Bought here on Audiogon from first owner 6 years ago when it was 1 year old. Used in a home theater setup without issue. No smoking, no children, one dog. Has worked perfectly, never overheated. Cosmetically 9/10 with no scatches/scuffs/dents. Only issue (that I'm aware of) is blue LED on power switch is out. I've called out to San Fran (where Parasound is located) and technician tells me that it's a common occurrence and it does not affect performance. I'm happy to answer any questions. It's been a great amp and served me well.