I was there for a few days and the appartment is closed to everything to be honest, check in and check out were easy as owners are very flexible and try to find the best way to find different solutions.
The appartment is clean, with everything's needed.
The only little thing is that the area is noisy during the night but of course when you want to be closed to the center of a big city, this is normal moreover in Madrid so I'm not surprised.