I have heard one of his former employee speak very highly of his printing skills and his patience with newbies.
Also, the workshops at Peters Valley, where he will be teaching this summer, are excellent! Very good darkroom facilities for a workshop (especially one that is as far in the boonies as PV is), and the overall environment is wonderful. Photography is only one of the disciplines covered by PV, and the ability to mingle with potters, weavers, jewelry makers, wood crafters, blacksmiths, deer and black bears is very inspiring.
Just be aware that the living accommodations are not elegant - think college dormitory, and move down a notch.