Had an excellent stay here. Isabelle is very kind and responsive, easy to talk to.
The flat is quite large and bright, with a huge kitchen which we cooked in plenty, and a room to store your luggage. The location is absolutely perfect, many excellent food/coffee/grocery options within a few minutes walk, beautiful old side streets to wander around, plenty of local options to discover as well. And within 10-20 min walk (or even quicker tram/bus), you can be at the center of Lisboa by the water, time out market, chiado, baixa. Very convenient! Also was nice that the flat happens to be located on a flat road as much of Lisbon is on incline.
We stayed for 1 month. The wifi is good enough to work from. The furniture is livable, not the most comfortable though. Some construction noise during the week, drunk people yelling on weekends, but nothing too disturbing.
Would definitely stay here again!