We were at Antonio Y Carlos's the four of us and we very much enjoyed the apartment. The location is fantastic, right at the heart of Madrid in a very lively neighborhood. You could feel how the city is buzzing 24/7. We could walk to the major sights, but public transportation stops are also very close. There are grocery stores and other shopping possibilities in the near proximity of the house. The apartment was very clean and well equipped for our needs. The communication was easy, Carlos responded through airbnb to all of my questions. For those who enjoy being in the middle of the city's daily and nightlife, this is a perfect spot. For those who need silence for sleeping, I recommend a quieter neighborhood.