We had a wonderful time at Paula's place. Communication with the host was always fast and easy. Check-in was very easy, with one of our neighbors letting us in and showing us the place because Paula was out of town. Check out was also very simple, with no coordination between the host and us required.
So many places were walkable from the apartment. Multiple cafes within a 2-5 minute walk, the Arco da Rua Augusta between 10 and 15 minutes, and more restaurants than you could want just down the street. There's even a vegan italian restaurant about 20 steps from the front door.
The apartment itself was very nice. We kept the windows open most of the time and enjoyed espresso on the couch. Would definitely stay here again if we're lucky enough to return to Lisbon.