Mercedes and her son were very accommodating and extremely nice upon our arrival to Madrid. Our plane came in late, but Mercedes was still at the apartment when we got there. She showed us how to wok everything in the apartment as soon as we got there and let us know to contact her if we had any problems. The apartment is a little smaller than it looks in the picture, but is a typical European apartment size for in a large city like Madrid. It was perfect for the 4 of us. The apartment is at a perfect location! Atocha (the train station) is a 5 minute walk from the apartment, and there are tons of places to eat along the street or the next one over. Also, El Prado was about a 15 minute walk away, and there is a very close metro station to get on the metro that is easy to use. Also there is a great club within a 5 minute walk from the apartment called Kapital, which is a really great place to go if you want to go out one night. Overall, the apartment was perfect for our needs and was very centrally located.