The place is great, looks just like in the photos and is perfectly placed. There were 7 of us and we had enough space though the double beds were a bit small (max140 I think).
The apartment is clean and beautifully decorated with great details. There is one bathroom and one small equipped kitchen and we could also use the outdoor space right next to it.
Joanna was easily reachable at all times and very friendly.
The apartment is indeed in the heart of Alfama, really close to anything you could possibly want(cafes, stores, restaurants, small shops). It's within walking distance from most landmarks and the area is truly beautiful.
I totally recommend it!