The process was efficient and very quick.

The rental and return process was very quick, and the staff even said not to worry about small scratches when returning the car. They were so generous. Renting a car in the US is incredibly convenient.

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

Overall it's quite good, with a competitive price. They didn't push any extra items when picking up the car. Since I was planning a road trip, I opted for roadside assistance at $5 per day, which is reasonable. Alamo is quite friendly about opting out of certain charges, like crossing the Golden Gate Bridge (north to south); if you pay online yourself, you can automatically opt-out of Alamo’s charges without contacting them. Picking up a car at San Francisco airport was quite intense, it felt like there were more people than cars, and you had to grab one as soon as it appeared.

There was a long queue, and we had to wait 100 minutes to get the car, though our order clearly mentioned the pickup time. They eventually gave us a free tank of gas as compensation. During the wait, we noticed staff members letting others cut in line.