Great view over Lisbon and value for money.
The place is rather small for 6 adults (small rooms, cannot open a large suitcase inside one, top room is under a roof where people larger than 1.40m cannot stand).
Unfortunately luggage storage before/after check-in/check-out is not possible at all, also no flexibility in terms of early check-in/late check-out (and rather late check-in at 4pm).
Be mindful that the place is only realistically reachable over a large flight of stairs, which is pretty slippery. Ubers only drop you off at the bottom of these stairs.