The apartment is ideal for city breaks or short stays in Madrid, and the self check-out adds a lot of flexibility.
The apartment does not receive a lot of natural lighting per se, but for people that will spend most their time out visiting the city it's the perfect budget stay.
Despite being such a central location, I've had no issue with noise during the night. I highly recommend the nearby restaurants, especially Rosi la Loca which is right under the stay.