We stayed in the apartment for a week and had a great time. It is not super close to the center but the bus and metro station are close enough to reach anything in and around Porto. The Wifi was working very well which we appreciated a lot. Unfortunately it was very loud during the evenings/nights which was partially because we were unlucky and had noisy neigbours in the house but also due to the poor soundproofing of the apartment and neighbourhood in general.
Overall we enjoyed the stay and Gabriela and Goncalo were always approachable and happy to help us.