We had a great stay at Sofias place. The flat is very close to Barrio Alto, Chiado and downtown. We really enjoyed the neighbourhood, and there are lots of bars and restaurants close by. Regarding the flat itself, it was clean and the bed quite comfy. Very tall people might have problems as it is an attic appartment and you have to watch out for the walls then 😉 however it's been a lovely experience in overall and we would definitely stay here again on our next trip to Lisbon!