They didn't aggressively push insurance and offered phone support during lunchtime.

Excellent

It was alright, nothing special.

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 staff at the store were dedicated, responsible, and enthusiastic. They provided detailed information about the car condition, vehicle usage, breakdown alerts, and driving tips in the US. Renting a car in the US is very common, but the rental process itself is quite interesting and enjoyable!