Cute apartment in a great central location. Easy walk to Rossio railway station and metro stop, which makes for convenient travel for day trip to Sintra or accessing other parts of the city via metro. The place is surrounded by great restaurant and shopping options in Bairro Alto and Baixa-Chiado neighborhoods. Would definitely stay here again!
If traveling to or from the airport, I would recommend taking an Uber or taxi. I tried both modes of transportation. While it is easy to get to the apartment via metro, it is a relatively short ride from the airport by car and only cost 8,5 Euro via car (Saturday morning). With the narrow sidewalks, cobblestones, steps and volume of daytime foot traffic, I found it much simpler to Uber instead of navigating metro with a carryon suitcase, which involves traversing 14 metro stops and a line transfer from the airport. When I arrived I also encountered very long queues at the airport for buying a metro ticket into the city. Otherwise if you don't have rolling luggage to schlep, metro works great.