Joana's place was wonderful - centrally located, walkable to everything you'd want to see in Lisbon, and cozy with items you need. She was super responsive with all my silly questions and was willing to help, when needed. The walls were a tad thin for my liking (but not that surprising for the age of the building) and you may hear neighbors from time to time, but it's not too bad! Most people are respectful of quiet hours. Would definitely recommend staying at Joana's apartment when visiting Lisbon!