Edna's place is fine to spend a couple of days in Lisbon. The location is its best point, right next to the Barrio Alto, perfect for seeing the centre of Lisbon, partying in the area and feeling like you are in the heart of the city. It might be also pretty noisy. The studio is very tiny, very essential. The sofa bed is pretty good! personal advice:make sure to sleep with your head on the high part of the sloping room