We stayed here for 5 nights. The hosts (Eduardo and Santiago) were just great. They shared tips for travel. They handover a set of keys & you are free to enter their house at anytime (I have stayed at few Airbnb apartments. You don't get this everywhere).
There is a big supermarket( Dia) downstairs. There are few 24*7 cafe 10 meters away. The room was clean. It was a bit small for two people. But it was perfect for the price we paid. You get a private bathroom as well.
There is a bus stop just outside the building. The nearest metro station is 1 km away. I would love to stay here again if I comeback to Madrid!!