These people make no effort whatsoever to fix the real problem. They just try to sell you an installation of a part that is not the problem, as I just found out after spending another $400 there. Moreover, recently I was supposed to get a new alternator installed. Instead, they charged me for a new one, but installed a refurbished one, which promptly failed (which is the only reason I found out about this dishonest practice.) They are nothing but incompetent scam artists.