We went to Porto end of August and had a lovely time! Diego's last floor apartment is super cosy and classy. The room on the top of the duplex is enjoyable, and has its own bathroom. Both bathrooms are super clean and spacious, and everything is provided. The bottom of the duplex is comprised of a nice, furnished kitchen with everything you need (countless mugs!), a living room part with sofa that can be used as a bed, a large TV and a long balcony from which you can see Porto's cute roofs.
The location is quite strategic as it's in the north of the city and quite on top, so what we mostly did was go down by foot to visit monuments, and come back with a metro, the metro station being super close to the apartment.
We had a lovely stay and hope to come back some time soon!