Maher and Dimmitt sell the most corvettes, hopefully their techs have more experience. I've had the most work done by Maher and I don't have any real issues. Nothing compares to Dimmitt cadillac, but you can't use them till you are on your extended warranty. On your gmpp after 3yr/ 36k miles you can go to any gm dealer. Dimmitt cadillac gives free loaners even for oil changes. Free sodas donuts and ice cream. They take interest even in small issues like squeaks. Wish the chevy dealers were that interested in making us happy.