We loved Pilar's place, and she is very kind and helpful. It is not far from the metro (300-400 meters I believe) and from there all of Madrid is accessible. It is a small room, and there is a shared bathroom, but we never felt crowded. In fact, the bathroom and shower are quite nice. She offers you use of the kitchen and a washing machine, if needed. It is quite a value. It is the fourth floor of a secured apartment building, with an elevator.