This place is located in an alleyway and inside of a small shared courtyard so it's pretty quiet but also close for walking to the city center. Bárbara & Sönke were very communicative with us with check-in and check-out (done via lockbox, super easy). The apartment overall was super clean, very well-kept and had all the amenities for us for the nights we stayed in to cook. They even had a small gym area for exercising off those extra pastei de natas ;). I would definitely recommend staying here when in Lisbon!!