The flat is awesome with room and living room shining from the sun every morning. The rooms are clean. The only draw back is the neighborhood. It is located in the multicultural neighborhood, to your left, it is where the homeless are usually staying in so avoidable most of the time and to your right is the indian/bangla community and further is the chinese community. If you don't mind the multicultural neighborhood, it is totally okay but if you are looking for a real touristic experience of Lisbon, not the best place to be honest. I felt safe walking around at night although skeptical of going around at night due to the neighborhood itself. In front of the flat's main door is the dead-end as well as a little way across where homeless stay around in the evening but not staying the entire night as the police usually patrols around the area.
Apart from the neighborhood, it is close to all the nicest asian restaurant, close to metro and downtown!