Friendly host and beautiful room! It was tidy and moderne. The location is good, there are restaurants and subway stations in walkable distance. However, our neighbors were loud and annoying during the night. (At 4am) The wall is not really soundproof. Be aware that an earlier check-in (before 15:00 / 3pm) is not possible. We arrived at 8:00 in Madrid and had to wander around in rainy weather.
But all in all recommendable!