Centrally located to walk/ride around fun places in Lisbon. You can take trams, metro within a min walk. The unit was very clean and I can see that Sophia tries very hard to keep the place clean and functional. However, staying there was very challenging due to the super humid air. My allergies were acting up right away so I had to take allergy medicine during the whole stay. Even my wife who does not have any allergy issue needed to take the medicine. There is a small window you can tilt to open but it does not ventilate since this is the only opening in the unit. Therefore, guests will need to turn the fan on for the whole time. Even with this, you will get rid of some of the humidity not all. As you can see in other review, I highly recommend Sophia to get a dehumidifier in the unit.