I went for a quick look round yesterday - although I was a bit too bleary-eyed after the wedding festivities on Saturday to maintain my full critical faculties...! It did also appear to be exactly the same show as the big retrospective in London a few years ago (I think it was at the Tate Modern?) so there wasn't anything new for me to see. I still enjoyed it though.
Regarding the printing - it's really all over the place technically. Arbus is really all about the subjects, and the visual style is somewhat secondary ... which is fine except that occassionally there's a print that is done incredibly well and bolsters the experience of the whole thing. As an example - 'Tattooed Man at a Carnival' is printed dark and dense, which emphasises the texture of the man's hairy inked skin, and then his eyes really pop out at you. It's genuinely intense and effective. For most of the rest of the show I think Arbus was just printing in a way that didn't interfere with the subject, rather than trying to actively enhance the effect.
Oh, and I did see one print that clearly had some evidence of dodging, so that statement by the printer may not be entirely accurate!