5 star service for sure. We were on our way to Mackinac City when our travel trailer started pulling harder. We pulled into the rest area near Cadillac to check out the problem. One of the trailer tires was smoking, and extremely hot. I called the closest trailer sales/service in Cadillac but was told they did not have time to work on the trailer. The next number called was Harts. They said if we could limp there, they could fix it, and get us back on the road. They pulled a trailer they were working on from the garage and put ours in. They fixed our wheel, (blown wheel bearing), lubed all the other wheels and had us back on the road in less than two hours. Their fee was very reasonable, far less than expected. Totally recommend Hart's.