Xuan was there to welcome us to his fantastic and huge apartment! It was very clean and spacious, with an excellent kitchen and a very comfortable bed. We thought the neighbourhood had a lot of character, which we liked, and it was within easy walking distance to many attractions. The shower has excellent pressure and unlimited (it seems!) hot water, just that the lack of a bathroom door and shower curtain meant that it could feel a little bit cold when taking a shower! There's a large living room with a comfortable sofa and a TV which we could use to login to our Netflix at the end of a long day of sightseeing! The only downside for me was the lack of ventilation in the apartment, as there aren't windows to the outside, just doors to an internal patio area which seems to be used by other residents for smoking so we couldn't really leave the doors open to get some air in. The plus side is that the apartment was really quiet, so we slept well, and it felt cool in the building, which I imagine will be a great relief in the summer months! (but there are heaters in the flat in case it's cold too!). Overall, a really great option if you're staying in Madrid!