All was great but had to wait a bit at pickup

I followed the instructions to return the car and received a bill with no additional charges, but my credit card was repeatedly charged at midnight for two consecutive days without any explanation or invoice. I have no idea what the charges are for, and neither Hertz nor the car rental platform have responded after a week! It feels extremely risky to authorize my credit card to them! The car was in good condition, but how can this unauthorized charge issue be resolved?

Renting the car was convenient, but returning it was very inconvenient. Although we were told that we could return the car after working hours, the garage was closed, causing us significant trouble in the middle of the night. We had to pay for parking ourselves and wait until the next morning when the office opened to return the car. This was really unsatisfactory.

Overall quite satisfied, but the highway toll system in the US is a bit confusing. The lady at the counter wasn't very knowledgeable about the car, and didn't know what type of fuel to use (it's also not indicated on the fuel cap).

Very satisfied, friendly attitude, no upselling, and the paperwork was done in just a minute or two. What's more worth mentioning is—they gave me a Chevrolet Equinox SUV.

Good