Maria and Carlos' place is amazing. The location can't be better as it is close to all main attractions, supermarkets and metro stations, and in a calm area. The apartment is cozy and comfy, and it has all what you could ever need, including washing machine, heating, air con, fast internet connection, etc, etc. Carlos was in the apartment when we arrived to explain us everything about the apartment and give us information about Madrid. I'd definitely stay here again and would recommend this place to anyone visiting Madrid.