O & J Auto is a small out of the way repair shop just north of Devon and Ravenswood. I first went there as a child with my father, who brought our cars down there from Evanston because he trusted Omar, the owner. As an adult woman, I started bringing my cars to Omar about 7 years ago, and I will continue as long as possible.
Omar is very honest and extremely fair with pricing. He will tell you what must be done, what should be done, and what can wait. His estimates are almost always on target -- usually the repair comes out to be the same or less than he estimated. There really is no down side with him. I've recommended him to several friends, and everyone is very pleased with his service.