The stay at Christina's flat was very nice. The flat is big, clean, and nicely furnished. Christina left us some local pastry and some wine for us to try. The communication was clear and reactive, and she was able to advice us on some doubts we had.
The location is not in the middle of the old city center, but you're 7 min away from the metro, and just next to the archeological museum, so it's still very good if you come to visit the city.