I have been using Audio Specialties for my hi fi repair needs for over 15 years. Amps, CD players, tape decks, high end, mid-fi, et al have flowed through their doors, and I'm always pleased with the price and quality of work. The only time a piece of equipment (30 year old amplifier) had an issue which could not be resolved, my original charge was refunded in full. I will not use another audio repair facility in Portland.
Pros: Quality, price, integrity.
Cons: Realistically, none.