We had a wonderful time at Joana's place. The apartment is clean, pretty, very spacious for the two of us and has a lot of Lisbon charm. Communicating with Joana is easy and very fast. We per chance also got a lift from her from the airport. Most of the sights are within walking distance (10-15 minutes), everything you need is right around the corner (food, groceries etc.) and if you want to discover more distant places in Lisbon, you will find very good connections for public transport (Bus and tram) close by.
We recommend the place and would love to return.