The apartment of a Emilio is a perfect stay for Madrid.
Me and my girlfriend really enjoyed the inside as well as the neighbourhood.
You can easily walk to the main attractions of the city and 2 metro lines are just a 5 minutes walk away.
Even if very central, both the apartment and the area are very quiet at night.
Though we did not meet Emilio, communication was just perfect: he also allowed us to check-out later.
We definitely recommend it and we would get back at any time