We had a great time in Elsa's apartment! Elsa picked me from the airport and gave us a free pocket wifi for hanging in Lisbon, we also got a really good mail with many(!!) recommendations about things to do in Lisbon . The apartment was perfect and in a great location. Elsa let us feel welcomed and was always available for all the things we needed.
I would recommend this apartment for young people that would want to enjoy Lisbon (There are a lot of stairs climbing to the apartment, so it is not suitable for all the older people).