We had a perfect stay at Flat 323! Everything was clean and the communication with Helena was super fast and easy. We could enter the flat earlier than expected and we could leave our luggage after checking out. The Flat itself is super beautiful and bigger than shown on the pictures. The roof terrace is amazing!!! The metro is only 5 minutes walking away, so you are in the city centre very fast, but the neighbourhood is soft and quit. We will definitely stay here again when visiting Porto!