I had B&C perform a diagnostic for my check engine light, complete the necessary repairs and conduct a smog check. Very well, overall. I went in knowing the reason for the check engine light (EGR valve), and B & C did not recommend any additional or extra repairs. They did offer to perform my smog check, which I had originally decided to have done elsewhere, but since I had a favorable impression of the professionalism and courtesy of the staff, I decided to have B&C do the smog as well.