The apartment is about a ten to fifteen minute walk from the Metro Tirso de Molina Station. There is a nearby supermarket and also many places to eat. It is walking distance to Plaza del Sol, Plaza Mayor, Gran Via, Retiro Park, and the museum area.
The apartment appears to have been newly renovated since it occupies a space in a one-time unfinished basement. There are several locks on the door.....not sure how they would be in case of an emergency.
There is no central heat but hosts provided two space heaters.
The apartment is good size for two adults.
The hosts keep it clean. Spotless kitchen (we did not cook) with cooktop, microwave, and dishwasher. Very small bar sink...so if you plan to do any cooking.....the cooking utensils such as pots and pans and even some dishes are really too small for the sink.