Terrible. I took my beautiful black C350 there a few years ago to have it detailed and they did a terrible job! First off, the guy who does the detailing forgot about my appointment completely and asked me to wait and I said I could not. So he said no problem, to come back tomorrow....so I did. I dropped off the car that morning and was told to return at the end of the day. I picked up my car, paid the man and went home. It was dark so the car looked fine to me. But it rained that week and when the sun came out I noticed all these scratches on the hood of my car! The whole hood...like he used sandpaper to polish it! The following weekend when I went back to complain to the guy who did the detailing he said he didn't remember me or my car and accused me of lying! My husband was with me and he got into a shouting match with him. Then we asked to speak with the manager and the manager started yelling at us and also called us liars! Unreal!! I was in shock! I consider myself a very honest person and these two made me feel just terrible! I will NEVER go back there!