The service attitude at AVIS Madrid Airport was acceptable, though not particularly enthusiastic.

We were overcharged for the young driver fee and the second driver fee. Additionally, there is still a charge of several dozen euros that we don't understand. It was a very bad car rental experience.

The front desk staff didn't speak much English when I first arrived, which made communication a bit difficult. However, the car pickup experience was excellent. I rented a compact Golf but received a nearly new Volkswagen Tiguan with only 6000 kilometers on it. The car was in top condition, though being a four-wheel drive, it consumed more fuel. Returning the car was simple; I just handed over the keys and there was no deposit fee. They only charged me the rental fee upon return. Overall, aside from the front desk's limited English, everything was great. I would consider renting from AVIS again, even though it's a bit pricey.

Arranged a change in return location through the hotel front desk by calling the rental company. Overall, satisfied. The rented car was brand new with only 9km on the odometer.

The process was quite convenient. They asked for the order, driver's license, passport, and notarized documents, then only inquired about additional insurance (I guessed, as my English isn't great). I declined, swiped my credit card, got the keys (which had the parking spot number), and left. Originally booked a BMW 3, but got a new Lada with only 1700 kilometers. Returning the car was also very easy; I just said 'done' to the staff (non-native speaker), they checked the car with a device, and it was fine. Back at the office, they gave me a receipt.