I had an extremely poor experience with this flat and I left early for another, much more suitable apartment in Madrid. Here were my issues:
1. Broken shower on arrival
2. The low beams that my friend and I hit our heads on repeatedly
3. Un-vacuumed carpets and dirty floors
4. Cigarette holes in the couch
5. Filthy cushions and pillows
6. Lack of curtains for privacy and sleep
7. Balcony from neighboring building looking directly into the bathroom
8. Broken space heater (the bedrooms were cold at night)
9. Broken couch (one arm was entirely disconnected)

I hope the property manager fixes these issues and makes a serious effort to deliver the apartment in a professional manner and livable condition to his/her next guests.