As a group of 5 we stayed in the apartment for a 5 nights city trip in Lisbon. The flat itself is great!! Nice modern style, very clean, kitchen has all you need, 3 classy bedrooms with enough space for everything and 2 bathrooms. The only things I could criticize are, that in the morning the street right next to the bedrooms was very busy and loud which let us wake up a few times earlier than we wanted to and as one of the bathrooms is integrated into one of the bedrooms 3 of us shared one bathroom; for this the 2nd bathroom was a bit small. Because of those points I think the apartment might be very good for families (parents bedroom, others for kids, getting up early anyway etc... are my thoughts behind).
But from overarching perspective we enjoyed it a lot and our host was super supportive and great!! Therefore clearly five starts and thumbs up! :)