I really liked this location. A very easy walk from the train station, and minutes from the major museums. If you wanted to take the metro there are nearby stops. There is a super convenient Carrefour Express about 1 minute away (as of Nov 22). Tons of bars and restaurants nearby. Very quiet considering the location.
Pablo was great, very communicative. When I checked in, a previous occupant had taken the iron and he went out and bought a new one immediately.
It's a little small, but has everything you need. Absolutely perfect for one person or a couple who are mostly going to be out and about when in Madrid.