great

My total rental cost was $771. At San Francisco Airport, the service staff gave me a bill for $1160, claiming it was for a vehicle upgrade. When I asked if it was the upgrade fee, they said it was a deposit. There were a lot of people in line, so I didn't check carefully. Later, I found out that there is no deposit for car rentals in the US.

Budget is the worst car rental company I have ever encountered. They added an extra $258 without my consent, including a $53 fuel charge. I repeatedly emphasized that I would return the car with a full tank, yet they still charged me $53 for fuel, taking advantage of my poor English as a woman. This place is truly unscrupulous. Additionally, my flight was rescheduled, and they demanded $250 for a 2-hour delay in returning the car. I will never use Budget again!

I booked a compact Ford Focus, but was given an economy Toyota Yaris instead. They downgraded my car, not fair.

Make sure to return the car with a full tank; the fee is quite high. I was charged $40 for missing a quarter tank.

Checking in was extraordinarily slow, as there were only two people in front of me in line and it took over half an hour.

The Pick-Up instructions for ORD are misleading: "From the terminal, you can see the shuttle bus pick-up area. Take the shuttle bus to the store and check in at the counter" ORD has a tram to get to the car rental lot from the terminals; only airport hotels have shuttle buses. Please correct the instructions to indicate that travelers should take the tram.