Having a 25 year mechanical background myself. I don't trust to many service centers. Over time I have caught quite a few not doing all of the work they charged me for. Or doing shabby work. So far I have been to Auto Serv a couple of times and find the staff knowledgeable and polite. The work done is A-1 quality and they keep me informed before doing the work .. Plus they have good lolly pop's at the desk, what more could you ask for ..