Very nice, clean flat in a great location - easy to access the main sights in Madrid either by metro, bus or walking - David had some great recommendations! The flat is small (the bathroom/shower particularly) but perfect as a place to rest after a long day of sightseeing. There are a lot of stairs to reach the flat (122!), and no lift access, but it is the penthouse so... the super cute little terrace is worthwhile to enjoy in the sunshine.