So, I can't tell you about their repair skills, but for a excellent reason. They told me upfront on the phone that they couldn't repair whatever it was causing my CHECK ENGINE Light (on my 2017 Silverado) as it was a busy Saturday morning. However, they said "bring it in and we'll run a diagnostic on it". Since we're dragging a 40' trailer around the country, I jumped at the offer. When I arrived, they were welcoming, jumped on it immediately, diagnosed the issue, shook my hand, and sent me on my way. All in under 15 minutes! By the way, the office / customer lounge was sparkling, and staff was friendly and compassionate. They recognized that without their help we would've had to delay our trip. No charge, just a handshake, and a "Drive Safe!" Then later on Saturday, I get a follow up call from their corporate office to make sure I was taken care of. All I can say is WOW!