The apartment is big, and, what is important during the warm period (we were there at June with +41 outside), with the windows at both sides. There you can find, all staff, that is required. The shops (big Aldi and small points with the necessary things) are rather close to the address. Around 10-15 min to the closest Underground Station. Host is very nice person. I didn't saw her in person, but she was friendly and quick with the communications.
Additional information. What is important to consider - it is historic center of Madrid. As a result, there are really a lot of bars around. That means, that visitors of these bars, who are also in the touristic trip, rather usually don't want to go to sleep. Sometimes at all. Also the house stays at the crossroads. And to this point comes communal garbage truck. Every day at 23.30. And it produces noise. A lot of noise. Fortunately, they require around 10 min for this - quick and painful. It doesn't relates to the apartment directly. However it should be considered. As far as the point, that small room window and bathroom window face to the internal tube-like narrow yard. And if your neighbor will decide to come back home at the middle of the night, you will hear it, like he will come at your room.