exceed my expectation

Overall, it was pretty good. The customer service representative was very patient during the communication process. In the end, they provided two parking cards in case one malfunctioned.

We picked up the car in Paris. During the trip, a dashboard alert indicated that AdBlue needed to be refilled. Later, we drove to Nice Airport, where they replaced the car for us. Finally, we returned the car at Paris Airport. Avis's service wasn't great—they charged us for fuel even though we returned the car with a full tank. Luckily, we had photos as proof, and the money was eventually refunded.

Excellent

The experience was quite average as the return location and route were not clearly explained. I had to find out the return location myself. The staff said to navigate to 2E, but after parking at 2E and leaving the key with the parking ticket clearly indicating the parking spot, the next day the staff claimed they didn't see the ticket and couldn't find the car, charging me 250 euros for parking. Very disappointing!

Nothing else to say, the return procedure was incredibly swift, just handed over the key and done in a second.