Overcharged but didn't explain it. Charged my credit card without permission.

Both pick-up and drop-off were very convenient.

1. Delayed car pickup with a bad attitude. 2. Numerous after-sales issues after returning the car, especially when booking through a third-party platform. They shirk responsibility and make unfounded charges, repeatedly charging misconduct service fees without any proof. 3. Many hidden issues: firstly, due to the domestic rental platform acting as a middleman, and secondly, neither the rental platform nor Avis could provide sufficient evidence for the so-called violations and violation management fees. Users are inexplicably charged on their credit cards! There is no way to complain or appeal!

It was convenient to pick up the car following the signs at Frankfurt T1. I switched to a VW Golf DTI which was a bit more expensive but worth it. Drove up to 200 km/h, thrilling! Returning the car was a bit tricky with the GPS, easier to follow the airport signs, T1 arrival, then follow the car rental directions.

They switched to a smaller car, which is highly irresponsible!