I've had nothing but Great service from Audio Xperts in Las Vegas, they're the only locally licensed macintosh, B&O, and many others repair shop.
They've repaired more then one Carver amp for me personally, as well as refoaming a number of infinity speakers, I've only had good luck.
They aren't salesmen, they are repair guys who also have a love of vintage equipment, so they have tons of gear crammed into a tiny space in an older section of town (in fact, where they are located was the porno theaters before vhs came around)
Bobby and Tony are good people. They don't bullshit, and they've always done what they've claimed.
Tell 'em Scott sent you