I have a Sony 36XBR400 that lost its picture due to two chips on the board going bad. I appreciate that ARBAT TV tried to repair the board with as little cost to me as possible. Their diagnostic fee ($80) is also very reasonable. Home Theatre Store wanted to charge $250 for diagnostics. I was concerned because many online reports about Sony repairs said they ran around $400-$500 or more. In the end, they fixed the issue for under $340.
WHOLE STORY: I filled out the ARBAT TV online form with my problem (at night...very convenient). When I didn't hear from them the next day, I called them the morning after that and the technician came to my house in 30 minutes. He removed the board and said he needed to take it back to his shop to replace the chip (it's soldered into the board in my tv model). He came back the next day (Saturday) with the board, but found there was a second chip that also needed to be replaced. He took the board again and came back on Monday (2 days later) with the repaired board. All is working now and I feel good about the service I received.
Pros: Speed, fair price, friendly, committed to doing it right, final price was under estimate
Cons: In effort to repair quickly, didn't test board before bringing back the first time