We stayed 3 nights at Sofia's place.
The apartment is nice, clean and cosy. It's like the photos on airbnb.
There is everything you will need and it is in the middle of Barrio Alto. Metro station is very close to the apartment too.
Sofia even let us a booklet for visiting the city of Lisbon and took news during our stay which was nice from her :)
I will definitly recommend this place. Thanks Sofia !