In my opinion, this apartment is in a perfect location for wandering up and down the streets to the different neighborhoods, restaurants and shops. The walk up to the Santa Caterina viewpoint is well worth the uphill meandering streets. The streets in this area are only open to residents (or their bnb guests) by permit so there is no through traffic. The apartment was perfect for the 2 of us. It is a very old building with old world charm but comfortable for today's traveler. There are local residents living in the building so during daytime hours you do hear usual daytime activity, it's not at all disturbing and night time is super quiet. We visited in November and the weather was rainy and cool. The space heaters kept us cozy and the music offerings and reading materials were also appreciated.
Thanks Alex for providing a cozy spot to discover the highlights of Lisbon on our first visit to Portugal. We will be back, for sure!