Would give 0 stars, however this is not an option. I went in for a smog with my check engine light on and had previously gotten my FREE diagnosis from Auto Zone informing me of the issues and codes on their FREE diagnosis. I was down to the wire with my registration and thought I would give a smog here a try to see if it would pass to just register my car and get it to my honest mechanic later in the week. The smog (which in my previous years has only taken 5-15 minutes Max) took 45 minutes for them to come back informing I did not pass and they would charge $49.99 to diagnosis the "problem(s)". I then looked at the failed smog sheet to clearly see the same exact codes Auto Zone had given me for FREE. BEWARE and do not waste your time with this location! There is one on Silverado and just East of Bermuda and they are honest and fair, but do not perform smog unfortunately