We got ourselves a full-size sedan to travel up and down the Pacific coast, and the car handled great. The car, a Toyota Camry, also was able to accommodate all of our hefty luggage with no problem. The Camry was stingy on gas, which saved us a lot of money when we had to fill it up upon its return to the Oakland airport. The young lady there was very helpful in getting us on our way to the shuttle, too.
Avis needs to let people know that it's located inside the Hilton. The mailing address is completely misleading, and there is absolutely no signage to help you find the place or to distinguish it from all the other car rental places on O'Farrell Street. Also, the woman behind the pickup counter kept trying to upsell us to an SUV after the sedan was already paid for and reserved. Don't do that, especially when the SUVs are gas hogs and gas is over four bucks a gallon!