Apartment located centrally -just 1 metro stop (Lavapies) away from Puerto del Sol. Apartment is extremely clean and beds re very comfortable. While it is small, must say I was amazed with the efficiency with which Elvira has utilized the space and arranged for all utilities possible. Supermarket available just down the road and is open 24h.

Downside: Wasn't very comfortable with the area's cleanliness as I didn't see another area in Madrid with as many garbage bins put out as this area had :-)
Also, no window looking out to the road. Makes the room a bit stuffy if you do not want to open the windows facing the common areas of the building
The other aspect I would like to suggest is : Something needs to be done about the light outside the apartment. Every evening we returned, the lights in the stairs went out just after we entered the main gate, creating a difficult situation.