While I fully sympathize with those whose repair took too long, my only experience with Dean and PSE was terrific. I have had a pair of his Studio V mono blocks since the early 90's. When the finish on the heat sinks began to discolor, I sent them to him. He not only replaced them (have never discolored since) but also upgraded the amps to the current status for no charge.
For anyone in the West needing service on PSE gear, Gary Garfield of Musical Fidelity (not the manufacturer) in Culver City, CA works on them. My Studio Vs
are going up to him next week for new caps.