I was pretty happy with the stay. Everything was clean and the bed was very comfy. Even though we had a hard time to communicate since I don't speak spanish, everything worked well. The only downside: it smells of smoke, even in the room. Just a bit, but as a non-smoker it was noticeable. If it doesn't bother you, 100% recommendation :) and Marina has a small dog, he is very cute!
If I need a room in Madrid again, I'd come back :)