I have no clue how these guys have beein in business for 10 years.
Have had my car there twice in the last 6 months on a recommendation from my regular mechanic. I was charged almost $400 between the 2 visits, for which they diagnosed nothing correctly; in fact what they told me they tested and WASN'T the problem, was EXACTLY the problem when I took it to a MERCB dealership. If i had gotten 400-one dollar bills and papered my wall with them i would have gotten better use out of them. My 3 yr old nephew could have taken his plastic doctors play kit and given me just as useful a diagnosis than these guys.
MY ADVICE: if your MERCB is acting up, look these guys up online, write their address and phone # down, and make a note NEVER to call or visit here.