Communication with Mario was easy. The instructions he gave us were helpful and everything worked out.
The flat consists of five rooms, that are rented out. We slept in room #2. The size of the room and the bed were good, unfortunately it was noisy because it faces the street. And the bathrooms could be in better conditions.
Within a short walk from the flat you are at the metro station and in the main shopping street. Breakfast is also nearby at a little bakery, where they also serve Nata (you should try it). We liked ithat.