What a rare find! I took my bike to be repaired here as I wanted it to be in good condition before I sold it. The owners were friendly and straight forward, looked at the serial number, looked on the Internet and told me it was worth much more than I had planned to sell it for. They did the needed repairs quickly and efficiently and when I picked it up, charged me less than the estimate--which was lower than other stores I'd contacted to begin with! I recommend Lulu's Cyclery without hesitation. These are good people with lots of experience!
if you want to avoid the drama and possible bad karma that is Craigs list (possibly stollen bike) this is the place to go. The service of a bike shop but used bike prices. Other shops in Nor Cal to consider for this are Pioneer, the Recyclery (Trips for Kids Bike Thrift store in Marin County). Yes, this is not fancy, we're not talking custom ti here, but you are buying a used bike at this point so their profit margin is tight.