My sister and I spent three nights in the apartment, and it was fantastic. Oswaldo was extremely helpful and very responsive as a host. He was even willing to let us check in early so that we could drop our luggage and explore Madrid. The apartment was exactly as described and as we expected. There was a great sitting area with tv and WiFi connected to a kitchen/dining area. The bedroom was separated from the rest of the living quarters by a private courtyard. The bedroom and attached bathroom were slightly small (as others have described) but perfect for us and the large living area more than made up for it. The apartment is on the bottom/basement floor of a building so there are no windows but the courtyard does provide natural light. Another advantage of the basement apartment was that it was relatively cool day and night even without air conditioning (few homes in Europe have AC tho!). The only downside of the apartment being in the basement was that it was a little muggy-damp because of the heat but Oswaldo did have dehumidifiers running to try and mitigate that minor issue. Finally, a great plus (that we did not use) was that the apartment had a washing machine, which definitely would come in handy if you are traveling for a while and need to wash some clothes. Overall, I would most definitely stay here again and Oswaldo’s hospitality really insured that we had a great stay!