My wife and I stayed in the apartment, together with my sister, for 4 days: we all found the accomodation, its ameneties and location ideal for our purposes. The apartment is comfortable, well-equipped and very clean; it's position, on a quiet street within easy walking distance of shops and one of Porto's main thoroughfares made it a great base from which to explore the city; and its garden provided a lovely space to enjoy breakfast or a glass of port.
Joao was an excellent host and made us most welcome. We particularly appreciated the time he took on our arrival to identify and explain the location of various sites of interest and places to eat. He was very helpful generally and responded very quickly to any queries we put to him.
Overall, a really great place to stay and one which we will definitely aim to use again on our next visit to Porto.