I'm French, but I will post my comment in english.
The Estelle Place is amazing. Really huge. We were 10 persons, and we really appreciate to have rooms for all of us, without to sleep in a living room. We didn't use the kitchen but it's full equipements. The location is perfect to hang out day and night. Good and safe area. The place is not so noisy. Estelle take care about you and stay online anytimes. The best advice is, don't hesitate, all is fine in this place, ask key(s) because you will walk a lot in Lisboa ;).