The apartment is well lit (which is great in the summer), cosy and spacious for two to stay comfortably. The best thing about it is the central location that allows quick access to the metro, 10minutes walk to Gran Via and is also close to a lot of restaurants and bars. We spent most of the time discovering Madrid and walking around the City.
If you enjoy walking this is definitely the place to be as it ends up being in close proximity to a lot of places such as Puerta de le sol, cirque de bellas artes among others