We have just spent 5 nights in Maria's lovely apartment. Our flight was delayed but Maria was readily available by phone and was at the apartment to meet us on arrival. She spent some time showing us around and was very forthcoming with local information - where to visit, eat, etc.
The apartment itself is as illustrated online and is situated about 3 minutes walk from a large Metro station which made a big difference for all sorts of visits in and outside Porto.
Very glad we stayed at Maria's place and we would certainly stay again if/when we return to Porto.
Thank you Maria and Joao for all your kindness and help.