We were two girls who stayed two nights at Alfonso's apartment. The apartment is modern, clean and comfortable. The location is excellent - about 50 meters from Lavapies metro station, close to many bars, walking distance to most museums, attractions, restaurants and bars, 15 mins walk from Atocha railway station. There is also a big Carrefour just around the corner. The area does not feel unsafe (but we are from London so may have different standards). Alfonso was very responsive and helpful before and during our stay. Would have no hesitation recommending this apartment.