Pretty good

They have self-service rental machines, and the manual queue isn't long. There is a bit of upselling on insurance, but you can just decline.

When picking up the car, the staff tried to sell me insurance, which I declined. Then they tried to sell me prepaid full tank gas at a bit over $2.20 per gallon, claiming it was cheaper than the city. I got confused and bought it. In hindsight, it wasn't a great deal. Firstly, the tank capacity is average for that car type, which might be more or less than my actual car's capacity. Secondly, you need to use up the fuel before returning the car, which is hard to gauge, requiring frequent refueling and mileage calculations. It's more convenient to refill near the return spot. The return process was quite fast, though. An inspector checked the car's exterior, issued a return receipt, and it was done in two or three minutes. Overall, it was a good experience.

Affordable prices, relatively new cars. The pickup and drop-off locations are far from the airport, but there is a shuttle bus service.

Super pleasant car rental experience. Picking up and returning the car was extremely convenient with simple procedures. The cost was much cheaper than similar models in China. In short, for traveling abroad, self-driving is a must. It's incredibly convenient!