My experience with A-1 Smog was very pleasing. The lady at the front helped me figure out if I needed a check or not, and when we figured out I actually didn't need one she was polite and was happy to save me money. To make a long story short and after a 30 minute phone call with the DMV I needed a smog. I went back to A-1 where they were very fast, knowledgeable, and officiant. I would recommend A-1 highly.