The apartment is a great place to stay in Madrid. It's very centric, close to the Plaza Mayor, Mercado San Miguel and Royal Palace. The apartment was comfortable for six adults. It's a quiet place to be in the center, but light sleepers should not sleep in the room next to the street because they could be woken up by the church bells. Millie was very friendly and responsive. They helped us book the taxi from and to the airport and accommodated us with early check-in and late check-out.