Foremost, Ricardo is a kind host made us feels safe and welcome whilst staying at Lisbon. I think his hospitality makes staying at this place even more valuable. Rooftop is nice. I particularly enjoyed showering by the rooftop and having some drinks in the evening , it is unforgettable. Location is good. During my stay of 4 nights, it was quiet. It's only 10~12 euro if you take an uber from the airport, and 4 euros from Barrio Alto. Also easy to access Belem and Cascais via buses or trams near the place.
I highly recommend staying at this place for both short-term and long-term stay.