I have been referring people to Mike Z for over 10 years and I have never heard a complaint. He does what he says he will do. I frequently bring him broken equipment when he sets up at the PHSNE shows. He once gave me back a broken Minolta XD 11 that simply had a loose transport screw-no charge and it is still working. He will also tell you when a $100 lens will cost you $150, you do the math. Mike is as honest as anyone I have ever met, and he will do exactly what he says h will. I often tell him to "get t breathing again" and he does, priced accordingly. When he has done complete overhauls, the cameras have worked flawlessly.
There are plenty of competent repair people out there. Mike is local, he stands behind his work, and he's a nice guy--that counts for a lot with me.