The apartment is quite spacious and very comfortable. We were four adults and we all enjoyed our stay at David and Carla's. We haven't met them, but we spoke on the phone during which they guided me through the apartment. Breakfast was ready for us, and this was so appreciated, not having to go grocery shopping on our arrival. Other small attentions made us feel welcome. The location is great! Near to several supermarkets and metro. But we walked a lot as the park just a block away led us to most places we wanted to visit. Great stay in Madrid!