They didn't proactively contact us the night we arrived. On the return day, we almost missed our flight due to traffic jams and they didn't allow us to return the car at Terminal 5.

Except for the language barrier, everything else was fine. The staff turned on the air conditioning before the inspection upon car return, and when returning the car, staff were already waiting in the parking lot and escorted us to the departure hall. Much more convenient than expected.

Made me wait under the sun for a long time when picking up the car

The process of collecting and returning the car is smooth and easy. A minor point to add - they should inform customer that the counter is located at Domestic Terminal, especially for those arriving via International flights.

Good car but slow to pick up

Good