Arturo's apartment is a beautifully modern in a classically beautiful building that is very central and walkable to all the main sights and spots. There are markets and restaurants literally steps away, and with Madrid being such a great walking city, we rarely had to use an uber or cab. The 4th floor vantage point gave us a beautiful view from one of the two or three big windows and the elevator made it that much easier to enjoy ourselves. :)