Stopped here because my check engine light came on and I heard a radio commercial that they can do a quick diagnostic. I waited a very long time to get help. There was only one guy helping customers. Another employee walked through and apologized that he couldn't help because he had to take care of a delivery. We were told the manager was on the phone and couldn't help customers either. I was one of 3 people in there with the same "check engine" issue. I guess their ads are working, but they are ill prepared to handle the customers. I left irritated and grumpy.