I only went in for a smog check so this is just based on that experience. I am not sure about the other services but the going in for the smog check was the most hassle free experience ever. I went in, told them what I wanted, dropped the car off, paid for it and that was it. They told me it would take an hour but it only took half an hour. And I really like that they donate $1 to charity for every smog check that they did, so that was a plus too.