It was very nice, the location is simply perfect, very safe, the apartment is really quiet, if you are a light sleeper, this is perfect for you, because there is no noise. The most perfect location in Madrid, walking distance to various touristic points, subway stations, El Retiro Park, major museums. Supermarkets, shopping malls...bars and restaurants. Comunication with the host was very easy and he was very kind. The apartment is bigger than in the pictures. The bed is super comfy. Big fridge. The weather in Madrid was nice (12 to 20 C) November when we stayed, so I do not know how it would be in winter or summer but I guess the apartament has AC and heater.
Bathroom and shower also nice. The only complaint is about the elevator, sometimes it did not function so we had to use the stairs. In summary, we had a great time here in Lucio's apartment, and Madrid is a beautiful city! We will come back!