U-Haul car trailer experience?

I used their full car trailer behind their biggest box truck in 2001 to bring my Dart from Virginia to Washington state. One suggestion. There were two attempts to steal the car out of 3 nights on the road. One night they tried to steal the whole trailer with the car on it, 2 nights later somebody tried to get the car off the trailer. Use chain and cables and locks to secure in several ways! Redundancy is your friend.

By the way the truck and trailer was as long as a tractor trailer, which I discovered the first time I pulled up to the diesel pumps to fill up!