Nelly is an absolutely amazing host! From the communication about my arrival to my check in and throughout my entire stay, she was always available to answer questions & for recommendations. This was my first time in Madrid and I can honestly say she was a big part of why my experience was so positive. In fact, I changed my reservation in December and booked to stay with her again before I return home.
The room I stayed in was a good size for me. My only note would be that if you want to cook, the kitchen is small which did not impact me because I only made instant coffee and used the refrigerator to store snacks & leftovers. If that fits the description for you, then this place is perfect! I especially loved how close the Templo de Debod is. I stopped by the park every day that I was in Madrid. Highly recommend!