Due to language barriers, I unknowingly signed a local insurance document. Customer service failed to resolve this issue, but eventually, an American friend helped contact the rental company and got the local charges canceled.

Returning the car was very convenient. The airport shuttle service provided after return was timely and convenient. The driver was professional and enthusiastic. Thumbs up.

The attendant at the San Francisco airport car rental counter had a poor attitude. After declining to upgrade the car model and purchase fuel and insurance, he barely looked at us properly. Since we arrived at night, there were few vehicle options, and the available cars were relatively old models.

The details of the full fuel option (full tank service) were not clearly explained when picking up the car. They said if the fuel wasn't used up when returning the car, we would get a refund. However, when we returned the car at the destination, there was no refund. Contacting customer service didn't help either. It's a lesson learned: don't pay any fees at pickup.

Renting a car at San Francisco Airport is quite convenient.