The flat is really well decorated and plenty of natural light, with high ceilings and high windows. The bulding itself and the common spaces are full of old details. As already noticed ithe falt is really noisy when windows are opened but this is a central location. Intimicy is tricky as the wall separating the room and the living room is not up to the ceilling. Overall the flat is compact and well organised for a short stay.
The location is great as we are walking distance to all the places of interest, the nearest one being Capela das Almas and Bolhao market. Bolhao station is really 5mn walk and direct to Campanha shoud you plan to go for the cruize at la Vallée de Douro from Pinhao station. No need to book in advance your ticket for the cruize at Pinhao.
Also you are surrounded with lots of restaurants and shops, with a Pingo Doce in the same street on your left when leaving the building.
You have to be aware that on the way back from Ribeira it is 30mn walk climbing streets: I have found that the best option is to come back from r de Sto Ildefonsove.
Best views were for me : at Gaia from Jadim do Morro (you can reach there with the tube) and Mosterio & miradouro Da vitoria (from Clerigos go dow rua De Sebento Da vitoria).