We stayed in this apartment for 3 weeks. We chose it because of the view, 2 bedrooms and its walking distance to the historical sites.
First point: the view is incredible. The apartement is spacious enough for 2 to 3 people, while the balcony fits 2 people at max. It is a renovated flat in an old (historic) building, clean and well equipped, although there could be a bit more dish, if you want to use the dishwasher. It has a spacious walk in shower with view over Ponte Dom Luís I.
Communication with Filipe and Manuela was 1a. They even provided food and fruit for breakfast. In the middle of our stay they arranged a cleaning. But there is one thing, why I could not give a five star rating. Shortly before we arrived, Filipe mentioned construction work in the next house with working hours from 8am to 4pm. I thought, that might not trouble us, because we would be on tour. Before you visit Porto you should know, that nearly the whole city is under construction. So not only in this apartment, but in a great number of them you might have construction and renovation work nearby. For us it meant noise from 7:45am - when the workers arrived - to 6pm - when they finally stopped (monday to friday). Leaving the balcony door open in this time was nearly impossible because of the dust and noise of the excavator and the jackhammer. In the last days it was a bit less noisy. If you stay just a few days, it might not be a point for you. The apartment ist just steps away from the cathedral ("Sé"), about 300m from the next metro and 400m to some restaurants. But don't forget, that you have to walk downhill, uphill, downhill ... to reach them and get back. The next bigger supermarket is 2 stops away by metro. The shopping area of R. Santa Catarina is around 1 km away. We decided not to visit Porto again in the next 10 years to leave them the time they need to reconstruct this wonderful city, but this is not the fault of Filipe and his apartment.