I have also had great work done the first time I went to Escalera. Then it was a series of nightmares. I know many, many others with horrible experiences with these shops. All the same story, great reasonable work the first time or two after that it turned bad. One story, which was confirmed by another mechanic, absolutely blew my mind. After 4 years in Mexico, I would say the only long term reliable and honest repair work for me has been Pablo's shop in W. Ajijic. I also have heard wonderful things about Salvador in Joco, but I can't seem to find his shop to try him out.