Pretty bad.

It's okay.

Great experience. They even upgraded my car for free and didn't push unnecessary insurance.

The Europcar counter is right in the domestic arrivals hall. We picked up the car around 9 am. There was no one in line, so we were helped immediately. All the counter staff were of Indian descent and had a bit of an accent, but they were very nice. They checked our passport, driver's license, and its translation, asked if we had bought insurance, and then gave us the car keys. We walked to the parking lot ourselves to pick up the car. The parking lot is left when you exit the arrivals hall. Compared to other car rentals at the airport, Europcar has relatively fewer parking spots.

The pickup process was extremely fast, probably within two or three minutes. There were no unnecessary questions; after checking the documents and registering some basic information, they handed over the keys. Returning the car was even faster; as soon as I handed over the keys at the counter, I was free to go.