This is a great place to stay. You are 2 mins walk from the no 15 tram that takes you to either Belém or into central Lisbon and close to shops and restaurants. The area is quiet but if you want to party the lx factory is 5 mins walk away. The apartment is cool even when hot outside and the terrace provides a great space to sit in the evening or to eat breakfast.
I would highly recommend as a base to explore Lisbon away from the hustle and tourists.