We had a great time staying almost a full week at this apartment.
The location is fantastic, a short (and flat!) walk to the bridge and old town and there's easy access to the Port Cellars and river front restaurants and market. The tram stop is right outside the front door which made getting around town and longer trips super convenient (and cheap) such as visiting the coast/beach, Porto stadium, concert hall etc and we also used the tram to travel back to the the airport.
The apartment was very comfortable, exactly as described with two large bedrooms, 2 bathrooms and large living area with kitchen, dining table and sofa. The kitchen was well equipped and the terrace area great for relaxing. No problems checking in or out, host was extremely responsive.
The bedroom side of the property overlooks the street and the trams do generate some noise, but this didn't impact us and the trams don't run overnight.
Overall, this is a great property in a great city and wouldn't hesitate to recommend.