This is a wonderful apartment in a fantastic area of Madrid. You are within east walking distance of everything, but just outside the hustle of Grand Via and Plaza Mayor. The apartment is well appointed, clean, and updated. It generally has everything you need. The beds are firm, but reasonably comfortable, and there are bath and hand towels available. There are heating racks in the bathrooms, which is awesome!. There are no wash cloths, so bring your own. We did note that we ran out of hot water if more than one person showered within a short period of time. We did not use the kitchen, but there seemed to be everything you would need to cook a meal, if you wanted to. There are wonderful restaurants and cafes in the area, so no need cook! The only caution I would share is that, as others have said, the noise from outside the apartment at night a lot. It is an old building, so you hear everything from the street and the stairwell. If you are used to that type of noise, it will not be an issue. If not, bring ear plugs!
Emilio is a fantastic host-very accessible and responsive.