Automotive Excellence was recommended to us by our son-in-law, who is a police officer in Huntington Beach, and uses them. We have a 1989 Mercedes that just couldn't pass the smog test. It was extremely stressful for us. We had already tried getting it fixed by the dealer and another Mercedes shop. We finally ended up at Automotive Excellence. The guy there took very good care of us. Our car needed a catalytic converter that requires specialized skills, and he had them. He also gave us a senior citizens' discount because we were already so stressed. Automotive Excellence did an excellent job. They were great to work with and I recommend them highly!