Lucia is really great host! She helped me with my big luggage, showed everything in the flat and answered many questions and doubts which I had about staying in Madrid. She was asking if everything is fine and whether I need something. The room is not big, but for a couple of days it's perfect. You will also have your own bathroom (everything is brand new) and what's really important for the hotter days there is an air conditioning in the flat! The flat is not in the center of Madrid, but there is a metro station and different bus stops nearby. Also if you have really big luggage remember that there is no elevator in the house. For me even these small things weren't a problem and I think I couldn't have imagined a better stay in Madrid!