Great, Walter was a very good host. He was always available to provide local tips about Madrid and gave me a few leaflets with good info.
The room and the property are exactly like the ones on the photos.
The place is clean and tidy and has all the amenities needed for a pleasant stay. The location is the best as it has shops, supermarket and metro/bus station around.
I will definitely go back next time I am in Madrid and thus, I recommend this place.