Javier was an excellent host and the room itself is exactly what you need if you want something small to spend the nights so you can focus on exploring. The apartment on the whole was super clean and nicely decorated, and felt like an oasis of calm from the craziness of Madrid's nightlife. Javier was very responsive and helpful when I asked about anything. The only thing to note is that the lock on the door to the room does not work very well, but I had no concerns whatsoever leaving it unlocked and there were no issues at all. 5/5 would happily stay again :)