Let me start by saying that I am not a car expert in anyway and therefore cannot speak from a technical perspective about the quality of service they performed. I can say though when I left, my car did not leak oil and that from a customer service perspective they got it right. The mechanic was friendly and courteous. He did recommend that I get my transmission fluid changed and suggested a couple options and the cost but no pressure at all. I will definitely use them in the future for non-warranty work.