We had a great experience and Nuno and Susana's apartment. Leading up to our stay, they were responsive and very helpful in answering our questions via email. Nuno took the time to show us around the apartment when we first arrived so that we felt right at home. The apartment is exactly as shown in the pictures, and very comfortable to stay in. We were four adults, and it was exactly the right size for us. It's a very centrally located apartment (about 2 min from Rossio). The building is secure. The tourist tram line leaves from right in front of the apartment (Martim Moniz). The square in front of the apartment has some not-so-great characters at night. Overall we had a great stay, and would highly recommend it.