Great location and place. Spacious enough for the five of us and close to all key sites in Madrid. Despite being in a very crowded area, the apartment is relatively quiet inside. Unfortunately, the check-in process was less ideal given that it was not automatic (i.e. you have to confirm the exact time of arrival), and since we experienced delays at the airport (long queues to pass immigration), we arrived later than expected and the host had already left despite communicating these delays to the best of my ability. Thus, we had to wait outside the building with our bags and older parents for a while.