My friend and I had a nice stay at Álvaro's place. The appartement is situated in the city center, in front of the metro station Tirso de Molina, which was very practical to reach the outskirts of Madrid. All the main monuments and attractions are in a walking distance from the apartment. The neighbourhood is nice with plenty of bars,restaurants and supermarkets. The apartment is fully functional and really quite, even on a Saturday night. It is on the 5th floor without elevator, so just be prepared for carrying the lugages up there. The bed was a bit small for 2 people but the mattress is confortable.
Álvaro gave us the opportunity to leave our lugages earlier than the check in hour, so it was really appreciated. I would really recommend this apartment for discovering Madrid!