Location is superb, close to where all the fuss is about, but still quiet neighborhood and street. the View from the living room is great to wake up to. the apartment is big and clean and has all needed facilities. the elevator is a big plus. you'd appreciate it after walking lisbon's uphills and stairs all day.
The host welcomed me in the apartment and gave me a full explanation and great tips and even a welcome gift! was also very responsive through Airbnb app.
for light sleepers, note that the wooden floors can be squeaky - as for the apartment above, so there could be noises from the ceiling, but nothing unbearable (at least for me)
another note is that the wifi doesn't reach the bedroom very well.
Overall my stay was great, I would book it again next time and recommend it to my friends.