I had a smooth rental experience with Hertz at both the SFO and their local location. However, I have to complain about Dollar and other companies starting with "T" (they're affiliated with each other). I booked with their San Jose airport location. The listed price was very low, but once I arrived, they tried to get me to add insurance and upgrade the vehicle. When I refused, they started causing trouble. They charged my credit card two $200 pre-authorizations, only to claim the card authorization failed. Ctrip couldn't do anything about it either. They even worried I might try to dine and dash, so they had someone contact Dollar's front desk through my phone to confirm the rental couldn't be completed before finally giving me a refund. Overall, Ctrip's international car rental service is baffling; the prices are indeed slightly advantageous, but the service is practically nonexistent.