Sergio is a very friendly and open host. We spent 3 days at his apartment in a residential and not touristy area. We choose the location because we were travelling by car and needed a place that would allow us to find parking in the street. The apartment is clean and simple. The centre of Lisbon is reachable by bus or tram in 25 min more or less (count extra time if you use the tram). Sergio's home is a good base in Lisbon if you plan to visit a lot during the day and then have a calm place to go back to in the evening.