The appartement was extraordinary as described. Dejan had explained how to enter in the house. The only minor point of our stay was to find a neighbour to open the main gate as this was closed.
It was close to city center which we could reach in about 30 min with our kids. We visited 2 restaurants from neighbourhood (Nepalese and meat one) which were both excellent.
If we come back to Lisbon, this flat will probably be part of it.