I've always used Alamo; they are reliable.

Very friendly car rental company with a wide range of vehicles and convenient rental process.

They kept telling me that the insurance I bought in China was useless and insisted I buy their insurance. When I asked about the available miniVAN models, they said they didn't know. Their attitude was quite average. Then they recommended that I upgrade to a Sienna. Actually, for four of us with two kids, plus three small suitcases and two medium-sized ones, it all fit. Later, communication with a Chinese staff member was better.

Overall satisfied, but the selection of cars is very limited, mostly only one or two options, mostly Nissan.

I rented a car from Alamo at San Francisco Airport. It was a Dodge that had run 14,000 miles. On September 15th, the agent, who spoke broken Chinese, told me that if I paid an extra fee of a little over $3, I wouldn't need to fill the tank when returning the car. I believed him and signed. As a result, I was charged $51 when I returned the car on the 30th. Since it was just after 8 in the morning and the agents were probably not on duty yet, I didn't argue because I was in a hurry to catch my flight. Ten days after returning home, another $22.4 was deducted without any notification or reason. Always make sure to return the car with a full tank.