This apartment is actually bigger than it looks on the website. My sister, her two adult children, and myself all stayed there. We had privacy--we each had our own room with its own bathroom--but also plenty of communal space to hang out. The apartment itself is lovely.
For those who do not know Lisbon, this is one of the most amazing streets you could stay on. It is right off of Largo do Carmo, which is a back way to the Elevador de Santa Justa (you can walk through the plaza and past the convent right up to the platform). You are just a few blocks from Principe Real shopping, a few steps from Chiado, but tucked away on a very private street right next door to a parking garage.
We would all stay here again in a heartbeat!