Highly recommend Alamo! When you exit SFO airport, take the escalator on the left or right side and hop on the shuttle train directly to the rental counter, very convenient. We added $5 per day for roadside assistance. It was secured with a credit card, and in about 10 minutes, we went to the parking lot to get the car. The key was inside the car, just ensure you have your driver's license and contract ready, as you'll need it to leave. On the second day in San Francisco, our car window got smashed near the Palace of Fine Arts. We reported it to the police, then drove to Union Square to try to change the car, but we were told we had to go back to the airport. The car change process was quick and hassle-free, and it was free. We got a new car with only 2400 miles on it, which was even better than the one we had before. Great service! We returned the car at LAX, drove straight to the parking lot, and it took about 3 minutes to inspect. Then, a shuttle bus took us to our hotel. This rental company is awesome, and we will choose Alamo again in the future!