It might be because the prices are cheap, so there are a lot of people renting cars at Budget, resulting in long queues. The car conditions are all similar.

Not too busy, no queues

Please refer to the content of this email, thank you. We have received the settlement document provided by the car rental company, which shows that you added Enhanced Third-Party Liability Insurance for $115.5 at the store. Also, you were charged a fuel fee of $28.58 because the car was not returned with a full tank, totaling $144.08. I explicitly stated at the store that I did not need any additional insurance, yet I was charged. Secondly, I made sure to refuel the car before returning it, but was still charged for not returning it with a full tank. This is not the first time I've rented a car in the US.

Good

We booked a Ford EDGE but got a Hyundai SUV instead. This car is definitely not as good as the Ford EDGE we reserved. Honestly, we are very dissatisfied.