The apartment is very good: spacious, nicely furnished with all necessary facilities and clean. It is located on the fifth floor of a well kept building. Despite all the activity in the Tirso the Molina square in front, it is very quiet inside..The location is fantastic, within walking distance of Puerta del Sol and Plaza Mayor, and near the Prado, Thyssen and Reina Sofia museums and many other attractions. The quarter is alive with bars, restaurants and shops. There are two big supermarkets just outside the building. A Metro Station and several bus stops are just outside the building. The check in procedure was very easy. I will be recommending it to my friends and will try to book it when I go back to Madrid.