I've been using them for the last few years. Good work and most importantly honest. One time, my wife had her oil changed and they came out to inform her that they had to replace the bracket for something and my wife was concerned that they were going to jack up the prices.... They charged her $2 for the part. That's it!
Another time, they kept track of a credit that I had on my account for $50 even though it had been 4 months since I last saw them.
Finally, their mechanics have been stable for years, it is a sign of a well run shop.