We loved staying in Olgas apartment. It's super comfy and nicely decorated and it's very well equipped. It's perfect for three people with two separate bedrooms and bathrooms and the beds are very comfortable. The terrace is great to spent a warm night with a glass of wine, the only difficulty might be to go down the narrow stairs after the bottle is finished. The flat is also perfectly located to spent a few days in Porto, because it's close to the touristic center and to the Metro.
The whole family welcomed us very friendly and check in and check out were great, even though we arrived later than expected. Communication was always very fast and easy and the tips Paulo sent us were amazing. We highly recommend their tips of visiting the restaurant Maria Rita (you might need a reservation) and going to the ocean on the Gaia side of the Douro by bike was one of the best things we did in Porto.
We had a wonderful time in Olgas and Paulos apartment and we highly recommend staying here.