Dollar doesn't pressure you to upgrade your car. Last time at San Francisco Airport, Thrifty kept suggesting I pay extra to upgrade to a Kia sedan because the staff thought the car I rented was too small to fit all the luggage and passengers. In reality, it fit just fine.

Very satisfied. No upselling, and the waiting time in line was short. Dollars car rental company offers no upselling, and both pick-up and drop-off were quick.

The service was excellent.

Had to wait more than one hour to get the car. Car seats were stained and the car was smelly all over. Reason for lateness was seemingly related to late arrival of planes(then why would the car not available then???). The service rep suggested to drop the car rental given the delays expected for pick-up. I had to incur cost because of this.