My mother used this place to get a mass air flow sensor replaced so that she could pass emissions... they charged her $139 dollars for the OBD, $149 for the labor (or the part???), and $202.65 for the part (or the labor???). Not sure about those last two charges, but I was able to look up the exact same part, from Blue Streak Electronics ($100 average), and typical mechanics pay ($25.95 hr). The sensor is a plug unit, i.e., unplug and plug in. The car was serviced for about 4 hours. Grand total = $551.96. Total transparency... you be the judge. I went with 4 stars simply because, yes, the part was changed and emissions was passed, not sure about the price, seems high. Oh, the car is a 2003 Ford escort.