Sergio's place is ideal for visiting Madrid. Walking distance to great food, the Prado, Sofia Reyne (and many others) and with longer walks to major squares. It sits right off the Central Park of Madrid and across from the major train station Atoche, where you have subway connections and easy day trips just by crossing the street. The place itself is great, in a very quiet building without street noise, despite the central local. There is also a great balcony and elevator. Sergio himself, was great too, allowing for an early check-in and very quick to respond to anything. A place we will certainly be back to. We were two couples and it was ample space without ever feeling like you crammed.