We had only couple days in Lisbon and Mariana's apartment is perfectly located in the city. There are lot of restaurants, a craft brewery a late night shop right in 50m radius. It's a good base to explore Lisbon: you can do shopping, eat really good while listening fado, the center and castle are easily reachable by foot.
The apartment was clean and I loved the shape of it with wooden hallways and the big 'french' balcony in the bedroom. It was just two of us, so we didn't try out the sofa, but the bed was comfortable. The bathroom is also clean but simple like shown in the picture.
Overall it's a great location and nice apartment to enjoy Lisbon.