First time customer. Sergio was extremely thorough with diagnosing the issues in my car's engine. Rather than suggesting replacing everything, he asked for some historical service data which allowed him to pin point and fix the problems at a very reasonable price. Once the diagnosis was made, I received a text and email with a full diagnostic report that allowed me to sign online to accept the estimate, and they were able to move forward immediately. When I picked up the car, I noticed that they had cleaned it and had made special precautions to not get the floor mats or door handles dirty while in their hands. They have a motto to return the car cleaner than when it came in. Their professionalism and efficiency really stood out. I will definitely be going back to German Sport for future service needs on all my cars.