This flat was well suited for my partner and I who spent a long weekend here. Nuno was extremely welcoming and gave us lots of recommendations on where to eat and things to see, and left us a nice bottle of Portuguese red wine! He also arranged a taxi for us to the airport as we had a very early flight. The apartment itself is a good size, and the location is very convenient. The neighborhood itself is quite loud because it is the center of lots of bars and restaurants but the particular street this flat is on is relatively quiet, however if you are a very light sleeper just keep in mind the bars/clubs are open in Lisbon very late (great for going out but just something to keep in kind).
Overall we had a very good time, Nuno was a great host and would recommend the flat!