Alfonso's apartment is located near the city center, we walked each day towards the city's main attractions. the neighborhood is very much alive but nowhere dangerous. The apartment is cozy, clean, we found everything we needed for a weekend trip to Madrid. Alfonso was very nice and helpful; when we arrived it seemed that the heating wasn't functioning, so he went and bought us heating equipment for each room. In the end it was a false alarm, as the heating functioned, but we really appreciated the gesture. We highly recommend Alfonso's apartment for anyone wishing to find accommodation in Madrid.