U-Haul car trailer experience?

Used them 3 times to run Max 300 miles round trip to Carlisle and back. And yes running at 70 was not an issue. I used the '92 Dodge B350 1 ton Church Van. I also used one to run Max to the repair shop on the other side of Philadelphia. I will not do that again. The Philly streets are not made for a car trailer. I am having a rollback bring him home. As far as a tow dolly is concerned, they will not let you use one for an AWD vehicle. Also, check the price difference for one way as compared to local.