Aranchi
Exceptional
First because of its location/environment and second for its cuisine. Its location has nothing to do with old Porto as it's situated in the most level area of the city, from the ribiera you can go by tram, get off at the last stop and from there it's a pleasant 10 minute stroll, or catch the bus 500, at the door and it leaves you very close to San Bento. It's traditional Japanese cuisine, that's rich with ample portions and its location and architecture are most dramatic.