The room was clean & cozy and the bed was comfortable. The bathroom is big and tody. Very good location. Walkable from both Atocha station(around 1km) and both monument sites such as the Museum of Del Prada & Palace. Carmen comes across as a friendly sweet person who is organized and communicates well.
Overall, I enjoyed my stay with Carmen and would recommend staying at Carmen's place if you get a chance when you are in Madrid. :)