Mafalda's appartement is perfect : very central in Lisbon, close to all the key areas to visit - Baix/Chiado, Barrio Alto, Praca do Commercio etc.
We never needed to take the metro or the tram but the famous tramway 28 make a stop in the street if you want. From the airport we took the bus the left us at 5min walk from the flat or you can take the metro that will leave you at 3min walk wich is super convenient!
Inside the appartement you have everything you need, it's very very clean, nicely decorated and with a great view! Mafalda is also a great host who kindly waited us while our plane was almost 1hour late. I highly recommand this place!