We did't see Rui but he gave us all the informations we needed to begin our trip in the best way !
The house is perfect for 4 peoples. It's not far from the airport (30 minutes maximum by metro) and it's a perfect location to visit porto. It is located in the city center not far by walk (5 minutes max) to the main monuments of Porto. Everything was perfectly clean when we arrived.
We all realy enjoyed the house and the city!