They aren't the most inexpensive, but they are the most effective. We've been taking our Volvo s40 there for the past six months.
They will do whatever it takes to find the source of the problem, which is the type of persistence our car needed.
The customer service is the most helpful customer service I have ever experienced. I was always given a thorough explanation of everything they were going to do.
If you want your car better when you get it back than when you dropped it off, take it to Baum Blvd. Automotive.