Nice downtown location, very close from Sao Bento train station (10 minute walk), close to the pedestrian street and other attractions, the river. Amazing local restaurant is downstairs in the same building. It was just a bit fresh in the apartment due to autumn weather, so be prepared with warm clothes. Rui was super friendly and helpful, we had a later train and the host let up stay a bit longer than expected checkout time since there were no guests coming. Really appreciated the attitude! Definitely recommend and would come back on the next trip to Porto.