This place is great! Everyone is always helpful, professional, and friendly, and Ive never had an issue getting my car in to be looked at (but have had to deal with long wait times at other places). One time my car failed the MA state fair inspection due to a tail light issue - I called Certified as I was pulling out of the inspection garage, and they told me to come right over. I got my tail light fixed and was back for a re-inspection within the hour. No major complaints or issues ever - I highly recommend this place.