I found Marshall's in 2005 though the "mechanics file" section of the "car talk" website. I have never been disappointed with their work - ultimate professionals, timely and when you can't be without your car they will do a rental for you - right on site (though they run low on rentals when it's 'snow bird' season). No weird pressure or up-sells - just honest business. That said, they're busy - so an appointment always helps.