Calle St Mateo 8 is a perfect location to base yourself for a stay in Madrid. We were there for 4 nights and walked to all the sites during our stay. We used the metro only once to get to the Bernabeu stadium which took 15 mins door to door so if this is part of your itinerary, again a great location to be in. Felipe and Pilar couldn't have been more helpful and responsive in the run up and during our stay and the apartment is spacious, airy and well equipped. Two ensuite bathrooms were a bonus!