Elsa and Rui are excellent hosts. The communication was really quick. They picked us up from the airport, even though our flight was 6 hours late. The apartment is in walking distance of all the great sites in the old centre and if you want to go a little further, the tram, train and metro are right round the corner. They had great tips on restaurants, sites to see and a handy pocket WIFI to stay connected to the internet at all the time. The only minor thing was the small shower, as I am pretty tall (1,93), but it was still OK. I definably recommend this place if you are going to Lisbon.