I've done a couple cars and they have come out great but there is always one or two things that I just can't clean (because they let things sit too long). I think some think I can perform miracles with a PC. I try to let them know that I clean and enhance a car not repair them. I have always been very up front with them about my services. What do you guys always make sure your customers know? On the flip side, is there anything you don't tell your customers?