This flat was good for a short stay in Lisbon, it was in a great area but the bathroom had black mold on the ceiling. When we checked in it had an awful moldy smell in the hallway which was even worse in the room. We kept the windows open during our stay and it was fine. There was a heat wave when we were there so that likely increased the stuffiness but if sensitive to smells i would not recommend booking this flat until mold is addressed. Otherwise our stay was good.