I can only recommend the Airbnb of Gizela and Gonçalo. We had a great stay in Lisbon and the really well located apartment contributed to this (public transport connections, nice restaurants and sights are very good and quickly accessible from the apartment).
The day we arrived we were very warmly welcomed by Gonçalo and he showed us around. The apartment is very comfortably furnished and also very clean. Although there are many nice bars nearby, it is very quiet at night. What is also very convenient is that shampoo/body wash, a hairdryer and the most important kitchen utensils are available.
I can only recommend the Appartmemt and would like to thank Gizela and Gonçalo for the hospitality!