We stayed at Francisco's apartment for 4 nights. The building was a bit hard to find because the street numbers are not aligned, but once we found the right building check-in was smooth as Francisco provided video instruction. Communication via WhatsApp was easy as long as we had WiFi connection. The apartment was very clean and as described. The apartment was ten minutes walk from the nearest metro, which is along a downhill path from Atocha Station. Up the hill to Metro and to Atocha with luggage would be 15min. Most major sightseeings such as Prado Museum, Retiro Park, Reina Sofia Museum, San Miguel Mercado, Plaza Mayor, etc... are within walking distance of 1 to 1.2 miles. There are cafes, restaurants, bakeries, and convenient stores in the neighborhood. We had a lovely time in Madrid and would recommend Francisco's place to visitors.