Like many of the places you can stay in the cities, Sofia's place is a 4 flight walk up a stairwell, BUT, What a beautiful spot when you get there! Very spacious with unobstructed views of the river, with nice window breezes and insulated from the street noises. The street below is full of energy and the locals were great. We found the location to be very convenient for us.
We had a hard time finding the place, I would get directions to the Arcaz Velho restaurant across the street. Airbnb sent us 3 kilometers away and added 30 minutes to finding the flat.
A few minutes walk away is a restaurant we found by following our noses to the door. The menu got us inside. The best 2 meals of our trip (as we ate there both nights). The Suckling Pig is the speciality (get there by 8pm), but the Tuna was amazing. The D. Afonso o Gordo rocks.