Quite satisfied.

Very satisfied, had a great self-driving experience.

I encountered an unethical staff member at Avis who seemed to be a manager—an outright scammer. Here's the story for everyone to understand. Avis requires the tank to be full when returning the car, but due to heavy traffic, a 40-minute drive took two hours. Worried about the time, I decided to refuel near the return location. To my surprise, there was no gas station nearby (which is unreasonable because if you refuel far from the return spot, the tank will not be full by the time you get there). For everyone's information, the return location has a gas station, but the price is $10 per gallon instead of the normal $3 per gallon. So, we were fined $61. Isn't this a deliberate rip-off? That's not all, though. The worst part is yet to come. We tried explaining to the staff to avoid the extra charge, but if it didn’t work, we were ready to pay. The staff introduced us to an American man who seemed to be a manager to resolve the issue. However, this 'scammer' pretended to help us. He printed a receipt, intentionally showing a charge of 61 and then a -61, making us think the fee was waived. He also added a charge of 17, supposedly for the regular gas price. We trusted him without thoroughly checking the contract filled with English and technical terms, and thanked him repeatedly. Later, I found out I was charged on my credit card. Upon inspecting the receipt, it all became clear (I kept the receipt just in case). The $61 was not a big deal; we were ready to pay but just tried our luck. Who knew people in the U.S. could be so unethical? Even when we picked up the car, the front desk staff was unfriendly. Maybe it was due to the cheaper rental rates for Chinese customers through Zuzuche? On a positive note, the customer service at Zuzuche was excellent.

At the car rental hall in San Francisco Airport, we waited in a very short line before reaching the counter. The staff was very friendly. However, we had booked a Ford Edge SUV, but the staff at the counter told us that it was no longer available and insisted we upgrade to a Dodge SUV for an extra $5 per day. We saw similar complaints online before our trip, but had no choice but to pay the extra and take the car. However, when we got to the pick-up area, we saw a Ford Edge available, which left us feeling quite upset. It turns out that even big companies like AVIS in the US aren't always reliable.

I've explained everything in the email, don't want to repeat it