As with many things which are 'national chains', each can vary drastically depending on location.
I'm one who isn't normally inclined to use UHaul over Penske or Budget but the latter two were unable to provide me with a Car Carrier (even though I had a reservation with one of them) and so I went to UHaul.
This location is an actual UHAUL location and not just a 'something else' that rents UHauls.
The folks here were great (including making check-in easy and digging out snow from in front of a storage unit I wanted to rent). The employees here were great and I would gladly use them again for my moving needs.