We loved our stay at Paulo’s apartment! The location is so central and walkable to everything. Paulo is a great host who was super communicative the whole time. The apartment did not feel hot despite no AC and there is a fan in the bedroom (it was 78-83° F while we were there). The sleeper sofa was very comfortable as well. The only downside was all of the construction going on around Porto/the apartment which caused full road closures (including sidewalks), however this was only a minor inconvenience. I HIGHLY recommend Paulo’s apartment if you are visiting Porto.