My mum and I had a fantastic 1 night stay in Sofia's cool studio apartment in a central but quiet part of Lisbon. The location is amazing, just next to the historic 28 tram and walking distance to the Santa Catarina viewpoint and a huge number of trendy restaurants, and walkable also to downtown and the lovely Bairro Alto. We didn't meet Sofia but she was very responsive and sent us a long list of recommendations. Would definitely stay again next time I'm in Lisbon!