Does anyone know a good repair shop in Sacramento, CA thats knowledgable, trustworthy and reasonable?

Side question: RS6 was recently in the body shop for cosmetic repair for two months (due to clear bra). The car had to be jumped several times, the battery replaced and now it appears the alternator is done. Does this sound odd to anyone? Would any of the chain of events explain this in your experience, because I didn't have a single problem with the electrical system before taking the car in.

Thanks for your help!