The flat has a very good location in the center of Masalaña: 10 min to Gran Via, 15 min to Plaza del Sol and 20/25 min to Prado and other museums.
The room is convenient and there is enough space to store all your items.
It was a bit noisy though, Masalaña is known to be a very lively place! :)
Richard was really nice and helpful during my stay, I really appreciated that, I definitely recommend it!