Isabelle's apartment is a great place to stay while you are in Lisbon. Everything was as described in the listing, and the apartment was super clean & tidy & had all the basic amenities. The place is walking distance to many attractions, restaurants, and cafes. The street might get loud at nights, weekends in particular, but the windows in the apartment do a good job of isolating the sound. However, as described in the listing, the common areas are poorly insulated and you can hear other residents, so as they can hear you.
Isabelle was very helpful when checking in, especially in arranging a parking spot at a neighborhood garage beforehand for us and setting up the second room to have a single bigger bed. Her enthusiasm about Lisbon rubbed on us and we all had a great time. I am sure you will too...