I could not recommend this place highly enough. The location is right on the river and the balcony has a stunning panoramic view. It was extra special to gaze at all the port houses lit up opposite us whilst enjoying a bottle of Port that Anne (the host) left for us.
The apartment is surrounded by little tapas places to eat, bakeries, restaurants and bars and only a 5 min walk to the pedestrian bridge to cross to all of the port caves.
The apartment was perfect for 4 adults, but would also be fine for an extra 2 adults who know each other well or children (as the top level has 2 rooms which are separated by 3/4 walls).
It was fully kitted out with any utensils and crockery you would need to cook a full dinner. There are tour guides, plug adaptors, free wifi etc. Anne also left tea, coffee, milk (and also a lovely bottle of Port).
We would definitely stay here again if we return to the beautiful Porto.