Elizabeth and Carlos were great hosts, who were always available when needed, and were extremely patient as I tried to chat with them using only the Spanish I learned in high school classes. Towards the end of my stay, I really enjoyed our conversations, which covered a variety of topics, including tips on where to go both in and outside of Madrid.
The location is close to two metro lines, and a number of bus lines, which made it easy to get to any location in Madrid as well as outside (i.e. Toledo). The room itself has plenty of space, and Elizabeth does a great job of trying to make the stay as pleasant as possible.