We had a great stay in the apartment. It is all new and very clean. You have a great view of the city from the terrace.
The kitchen is fully equipped with everything you need.
The apartment is near the metro station Bolhão, which is easily reachable from the airport. As every street in Porto, this street is quite steep and the area is hilly. If you travel with heavy luggage, you might want to take a taxi ;-)
Supermarkets as well as a fresh food market are located in 5 minutes walking distance. Also nearby is the shopping street Rua Santa Catarina which you can walk down to the famous São Bento station.
Marcia is a great host. She showed us around the apartment and gave us great tips for sightseeing.
All in all I definitely recommend to stay here :)