Rented a 14 inch U-Haul from these folks a week ago and it was as painless as it gets. I went in the day before to book and then picked up the next day. Neither individuals I talked with tried to pressure me into insurance, dollies, or anything like that; they simply asked "Would you like to add furniture movers?" or "Would you like to add insurance?" And to the latter question when I asked if I should he said, "It's entirely up to you."
I told them my estimated mileage and I got charged for the estimated charges only. I ended up adding one more mile than anticipated so after the initial charge, they then charged the extra .89$ for the extra mile. It was super easy. Normally renting vehicles of any kind is annoying and comes with tons of attempted up-sells or they charge a lot more on your card initially till you turn it in but they were very honest about the whole process.