Convenient and fast

You can input the information yourself on the self-service machine, swipe your credit card, and go pick up the car. It's very fast.

Pretty good

There was no upselling, but they added an extra tank and roadside assistance directly to the bill. When I noticed and pointed it out, they modified it, but the fee is still frozen and not refunded to my account.

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.