We will definitely stay at this flat again. We loved every second of our time there, and lamented having to move to a hotel for our last night in Lisbon. It's extremely comfortable, well-equipped, with a great location. It was the cleanest Airbnb we've ever stayed in, and probably the most beautifully decorated as well.
Check-in was fantastic and we really appreciated this given our flight put us in Lisbon after 9pm on a Thursday; communication was great altogether. If you're a light sleeper, the noise on the street might keep you up – just bring earplugs or play some white noise over the bluetooth speaker in the flat and you'll be fine.
Super close to tons of nightlife and restaurants. Great views just a few blocks away. Mini mercado right next door. Really can't recommend staying here enough. You won't regret it!