This is a simple family-run hostel right in the heart of Madrid with walking distance to all attractions in the city centre. The rooms are very small but clean and with a small bathtub in the room but toilet is in the corridor. The hostel is on third floor with no elevator and to get in from the street when you first arrive you have to get in contact through the intercom at the entrance of the building.
The hostel feels safe and is very quiet and calm. You have wifi-connection in your room.