Beautiful and unique space with a great view! The location is walkable to a main areas, and is very close to the train station that will take you to other neighboring cities (Cascais, Belem, Alcantara).
The apartment had everything you needed, and the hosts were good with communication and assistance. They were flexible with check-in and check-out, and welcoming. I enjoyed the private space and it was really nice getting to coming back to it after a long day out.
Only challenges to note is that there is a restaurant next door that stays open late, and the apartment is at the very top floor in a walk-up only building- you will need to be able to walk up a lot of steps each way.