We stayed in Porto for 5 days and really enjoyed the apartment. It is well equipped and well lit.
It was very comfortable doing some remote work during the day and tour the city in the late afternoon; the apartment is close to the river as well as to the main areas in the city.
Note that many areas in Porto are under construction, including next to the building. While some noise is expected - closing the windows provided enough noise isolation for us to work without interruptions.