I recommend Superior Automotive in Placentia... great attention to detail, clean shop, and good customer service.
If this is the same place that used to be in Orange, I would never ever take any work to be done there. The corvette that i am a crew member on had too many problems. Last time we were there they insisted on us paying cash, it was friday night and we had to be at an event on Saturday. We had paid with checks for almost a year or so. We always gave a deposit. We were able to find a place that had several thousands of dollar to pay the bill. We had enough after several blown engines. We had to call the cops for some of the parts to be returned to us.