Filipe was very good with answering all my questions before the stay and when we met at his house. He was very helpful and welcoming and met me to show me everything about the place on the first day.
The house was perfect for a long term stay. I was here for two weeks. I stayed here alone, but it would also be fine for a couple of guests.
The location is also very good. Though keep in mind that coming back from the Marquês de Pombal metro is uphill. There are also lots of shopping options nearby. It is a quiet residential area, so there's no noise from traffic or tourists, and the house is in the hollow middle part of a block of apartments, so the only real noise was airplanes.
Also, the wifi was very strong and Filipe has a very good coffee machine. Filipe also asked me to water his strawberry plant and allowed me to eat the strawberries, which were quite tasty.