Even though I paid $1,400 for a smog test and repair, only for them to determine that my Merc was a junker, worth maybe $300 for parts, it wasn't their fault. They couldn't see the really serious problem until they took the engine apart. They did the work, and I needed to pay them, despite the awful results ("Your car is dead."). Mike was very sympathetic. He gave me a good discount off the quoted price, when he really didn't need to. So I highly recommend them. Very straightforward and fair.