when it comes to auto repair, you don't always get what you pay for. MotorKars, on the other hand, seems to have the rare talent of doing exactly what they promise. None of that "fixed while leaving the shop, only to break a month later" business. They'll tell you up front what's wrong, what needs to be done immediately, and what can be left alone.
In my experience, their original estimates have been at or below the quoted price. There haven't been any surprises, because these guys know what they're doing when it comes to VWs and Audis.