The place is awesome for 5-6 people, we were 5 boys and we enjoyed the place a lot. As some other reviews say, the flat is right next to the castle (from the kitchen window you can see one of its walls) and that makes going back home from the centre a sporty walk (quite steep), not recommended for elder people, same as the stairs for getting into the flat, but as a tourist you wouldn’t expect going back home more than 2 times a day, and the flat itself was amazing. For saying something bad the flat didn’t have like a living room area (it did had a table and few chairs by the kitchen) with sofas or so, but I wouldn’t expect anyone to spend time on a sofa when traveling. Cristiana answered fast to our messages and we had 0 problems, easy self check in and same for check out, we enjoyed lisbon a lot and if we come back we’ll try to stay there again!