We used them in June, we got down in the big van and we were over heating. DH called, drove van over. He was back within half an hour. They called with updates, fairly charged us for repair, and picked him up, (it was the next day), within 20-30 minutes of DH placing a call. THey were extrememly nice and helpful, in the busy and hot June season.
(we were staying at Ft. Wilderness)
We would use them in a heartbeat.