The room is as pictured in the photos, good size room, 15 min walk from the metro and train station. The area is full of small shops bars and restaurants. Ypu also have several supermarkets at walking distance. The bedroom has a small desk and two chairs. I really enjoyed having a balcony for ourselves. No central heating but the host provided us with a radiator which was enough at the moment (temperature in Madrid was around 10 degrees while we stayed)
The flat is close to a busy road so consider to bring earplugs if you have problems sleeping.