I've really enjoyed staying in this apartment!
It's location is exactly in the middle of the wine cellars area which also has a very cool pedestrian street full of restaurants and wine shops. We were close to all main points of interests: right next to Luis I bridge, 15 mins to the middle of the old center and 25 mins away from the Lello library, Igreja do Carmo church and other near by points of interest.
The apartment was very clean and it felt like it was just renovated. It had a modern feel and it was equipped with all necessary things: kitchen stuff, good wi-fi, clothes iron, etc.
Francisco, the contact person for the apartment, was very friendly and gave us a lot of good tips, some of them known only by locals. The list provided by him was very useful.
I highly recommend this place.