Fabio's flat is very well located. It is easy to get to the 28E tram and to the centre of Lisbon by bus, from where you can easily explore the city centre on foot. There are very close shopping facilities and many restaurants, we can highly recommend O Pitéu da Graça.
Check-in and check-out worked great, Fabio personally welcomed us and provided an excellent tour guide. For three persons it might get a little bit tight. It was very clean, there is everything you need.
There were two of us and we can only recommend Fabio's flat!