1. For the first couple of days driving in the US, it's best not to stay downtown. You need time to

The rental office is far from the airport and very inconvenient! Then the rental company charged us a bridge toll fee of $11 per day. It ended up costing me a lot of extra money. Don't use this rental company, they are a rip-off! I spent over $200 more after renting the car!

They kept pushing insurance, vehicle upgrades, and various add-ons. The staff had a bad attitude and didn't understand any Chinese.

There was no Chinese service, so I had to muster my courage and use my broken English to rent a car. They tried to sell insurance and various local tour tickets of San Francisco, but I pretended not to understand and just replied 'no need'.

Never rent a car from this company.

I prepaid the full amount but there were no cars available at the store. Everyone was just waiting around and the staff was nowhere to be found. They didn't inform us or the people who had been waiting for over two hours before us that there were no cars. Only after more people showed up to queue did the staff finally say there were no cars. Very disappointed with the car rental company's attitude.