As a customer of signal garage in West St.Paul for many years, I offer this analysis. As an older ex farmer from northern Minnesota I am not unfamiliar with machinery. On a number of occasions I have “caught” signal hills mechanics and administration being honest to their financial detriment. A number of ways in which I could have never detected a discrepancy . Therefor , along with the quality of their work they have earned my referrals and loyalty. Big thanks to the best shop I have found, ever.