I spent 26 nights in Sergio's apartment while waiting for my accommodation in Madrid. The photos of the apartment are correct. The room and the bathroom are very clean. Sergio is a very nice host, who often asks if everything is ok and if I need anything. You can access the kitchen without any problem. The Malasaña district is very lively, you can find lots of places to eat or go out.
I was originally supposed to stay 21 nights, but due to a concern with my future accommodation, Sergio agreed to accommodate me for 5 more nights. A very good Airbnb that I recommend.