We highly recommend staying in Maria's apartment. The apartment was stunning, spotlessly clean and a brilliant location (close to lots of nice bars and restaurants and only a short walk to the main metro stop and best sightseeing). Maria was an outstanding host - her communication throughout was fantastic and she was very accommodating with our check-in as our train from Lisbon was delayed! We especially enjoyed eating breakfast on the balcony - the icing on the cake in the summer months. And hope to return to Porto and stay with Maria again soon.