Super apartments, great jacuzzi, convenient location, great owner! But my flight was delayed by 4 hours, the trip from the airport to the subway took another 2 hours. I arrived at the apartment at 2 am. According to the owner, the keys were left in the bar, which turned out to be closed. I had to spend the night on the streets of Madrid until 8:30 in the morning. The unpleasant situation turned out. The host should install a small safe with a combination lock for such cases. How it was done in Barcelona