I stayed there for one month.
Check in was great and Elsa is a sweat lady. She knows the area and has great tips for your stay.
The apartment was not clean when I got there unfortunately. The kitchen needed some work and some other areas. But with a talk with Elsa it fixed it and like bed sheets was clean. But dirty pans made me doubt the skills of the cleaning lady.
The location is for discovering Lisbon great. you are right in the heard of belem with the monestery, pastel de belem, MAAT, electrical museum and a great train connection to the beaches, Cascais or the old historic center of Lisbon. Or you can take the ferry to the other side of the tejo.
But also you are living right on the street opposite of a big school area. This means parents are standing right in front of your apartment door, kids a bump against your door. But with all the people around it was surprisingly quite. Your neibors in the house are a lovely family wit a turtle. Oh and if you get asked from a guy that he needs money because his tuk tuk broke down. Say that he ows me 10 😁