The location is a spot-on right at the centre of Lisbon downtown and it’s on the 5th floor with no elevator so you have the view but the room itself is a bit small for more than two.
I also airbnb in porto so can compare directly and overall the room was in a great location, a bit small in size and a few details such as wifi, hair or body gel, coffee capsule were not ready when arrived.
For a short-term stay for the Lisbon tour, it may be good enough.