Evan Gluck at New York Guitar Repair,
http://newyorkguitarrepair.com/ (his shop is on the Upper West Side of Manhattan), comes highly recommended, and he impresses me as knowledgeable and honest, but I can't testify about the quality of his work, because I haven't had him do any yet.
I took my ASAT Classic to him for a set-up, and he told me I needed a new neck. I bought it in 1993, and have played it very little, but kept tension on the strings through all those years, and the neck has bowed. Evan made a lot of adjustments, and got it playable, but he was afraid to tighten the truss rod any further. He wouldn't set it up, because he couldn't guarantee his work, with the neck in that condition. Even so, he told me that there are a lot of guitars out there that are in no better shape, and are being played regularly by pros. He wouldn't let me pay him a dime, even though he worked on my axe for half an hour.
If I decide to replace the neck of my ASAT, and can find a replacement, I expect I'll take it to him.
Jim Crutchfield
Long Island City, NY