We had a very good stay in this apartment. It was both very, very spacious, airy, clean and well-equipped - anything you would need for a very comfortable stay. Pictures and descriptions are very accurate.
The apartment is situated in a prime location - close to many shops, restaurants, and access to public transportation (steps away to Gran Via and Tribunal metro stops) to further explore the city. It can get quite busy well into the evening outside of the building, but the windows were well insulated that it kept the noise out. The only thing I would add is to have shear curtains in the master bedroom so to have some privacy so not to be in complete darkness with the shutters and black-out curtains. Other than this very minor detail the space is absolutely great for a family or two couple - highly recommend this place when visiting Madrid.