The room is private from other rooms and actually is pretty quiet after middle night comparing to lots of apartments in the center of cities. It is in a walking street, so there is no need to ask the taxi driver to take all the routes to the exact address, only need to stop at a close big street, and the walking takes no time.
Henry speaks sufficient English to communicate with English only people, and very helpful to us in many ways.
We wondered in the main square every night until midnight and walked 2 minute to the room. We definitely like to stay in this place again when we go to Madrid next time.