I've always used Alamo; they are reliable.

Picked up the car at San Francisco Airport. The older foreign gentleman at the far-right counter aggressively pushed additional insurance fees. When I insisted on using my QEEQ order, he became visibly unhappy, which made me unhappy as well.

Big company, new cars

The flight was delayed for over 5 hours. When we arrived, we took a shuttle bus directly to the rental car company from the airport. There weren't many people, and the paperwork was processed quickly. There were no excessive sales pitches, and the price matched what I had booked.

Had a free upgrade at the counter, which made the experience much better than expected.

Easy to use, single price upfront, price drop protector, excellent platform with speedy searches. I will be a returning customer.