The price for the car upgrade was very reasonable, just an additional $25 per day.

They just charge random fees.

Returning a car with Avis is quite convenient. Sometimes, young staff members will recommend upgrades, which can be worthwhile. For example, I paid an extra $10 per day to upgrade to a GMC Yukon, and it was totally worth it. However, if an older staff member helps you, they often lack the knowledge to offer any useful recommendations. For instance, they might class a Ford Expedition the same as a Chevy Tahoe, but the Expedition has a noticeably smaller cabin. While the Ford might handle better, if I cared about handling, I wouldn't choose a large vehicle. Most in-office staff are nice, but the people at the exit lot, whether Mexican or Chinese, act pretentious. That's a definite negative. You're just a parking lot attendant, there's no need to act superior, especially to Chinese customers. Because of this, I will never rent from Avis again. They are the most expensive and don't offer better service! Avis mostly lacks Chevy Tahoes!

Robust system

I didn't have a good experience with AVIS. The staff seemed to take advantage of customers whose English wasn’t very good. After waiting in line for over an hour, the attendant said he needed to find the car. About 15 to 20 minutes later, he returned and asked how many people and how much luggage I had. I told him the truth and he said he would get me a bigger car. I asked if the upgrade was free, and he nodded. When handling the paperwork, I had some questions about toll fees, so I asked for a Chinese-speaking representative. I also asked her about the upgrade, and she said it wasn’t free; it would cost $17 more per day. I immediately requested no upgrade. The initial male attendant pretended to confirm this and then told me that my reserved car was unavailable and that he had to give me an upgrade, which would cost a total of $14 for 11 days. Since we had already waited a long time and my elderly companions were very tired, I agreed. Later, I found out the Ford Flex they gave me was actually less spacious than the Chrysler Town and Country MPV I originally booked. In summary, it felt like a scam.