Overall a really great apartment for a stay in Madrid. The apartment is in a fantastic location, in a nice block of flats, and provided everything we needed during our stay in Madrid.
Only things worth noting are that the apartment appears bigger in the pictures than in real life, and that the roof made some strange noises, particularly at night (perhaps something to do with the temperature of the tiles as eluded to in a previous review). But neither of these were significant issues to us.