Twice I've brought my car in and told them I had some particular problem and they've found something minor and unrelated that was actually causing my problem. In both cases the problem was making the car undrivable and I was looking in the wrong place trying to fix it, and both times they had it solved in under ten minutes and didn't even charge me for it. When your mechanic tells you that work you thought you needed, and asked him to do, isn't necessary, you know you've found an honest businessman. I'll be coming back to this garage as long as I live in Charleston.
Pros: service and expertise
Cons: access (usually have to drive past and make a u-turn in)