I enjoyed my stay with Carmen and her son Ignacio. They were very friendly and answered all my questions I had about what to do in the city and how to get around. The room was as advertised and overall the place was clean. Further I was able to use the kitchen and do my laundry without any issues. In terms of the location, it's not really where all the action is but you're only about 4 metro stops away from the center. The only negatives were on one of the nights the neighbors were a bit noisy and I wish the room had better lighting. Otherwise, this was a great experience, and would most likely stay here again if I'm back in Madrid.