My car had a bad misfiring problem -- the sort that could be caused by 15 different things. The shop thoroughly diagnosed the problem (on the second try, but they made sure to have me come back and test drive it so we caught the additional problem). They promised not to give me back the car if it wasn't in perfect shape, and they didn't. They explained what was wrong. And I'm pretty sure they saved me a lot of money on parts and (very) reasonable labor costs. Thanks guys.
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