Everything else was fine, but finding the pick-up and drop-off locations was very frustrating. Also, the store's contact number is a general customer service line that is difficult to reach a real person and not directly the store, making it very inconvenient to get in touch.

When picking up the car, it had two bars of fuel, and we returned it with the same amount. However, they still charged us for fuel. The staff acknowledged the mistake when we questioned it, but a month has passed and the refund has not been resolved. Additionally, we had already purchased super insurance at the time of booking and showed it to the staff when picking up the car. Yet, the receipt at return included insurance charges and related taxes. These additional fees amounted to two-thirds of the original rental cost. This is the first time we've encountered such an issue after many self-driving trips both domestic and abroad.

The wait time was too long; the efficiency of European workers is evidently not as high as that of Chinese workers.

Could not pick up the car in advance, even if it was just 10 minutes early. After the paperwork, you have to walk to the parking lot behind the station to get the car. Rented an SUV but got an Audi A3 because it was the only option available.

When we arrived at Madrid train station, they said there were no cars available. We waited for nearly three hours, and they promised a Mercedes 9-seater, but at the parking spot, they changed their mind and gave us a car that had just been returned by someone else. The car wasn't even cleaned, and the tank was empty. As a result, this car hadn't undergone safety checks, which led to a tire blowout on the road, putting everyone's safety at risk. We spent most of the day fixing the tire, ruining our plans and costing us several hundred for international calls.