This place is really amazing, with a beautiful river-view and fado all around you. You cannot be more in Lisbon! Sara is a wonderful host who helps where ever she can. She welcomes you with a bottle of local green whine. The place is super clean, the bed sleeps fantastic.
Take earplugs with you if you don't like the street and fado late at night (it didn't bother me, but just so you know).
Everything is very close to this apartment. Breakfast next door and diner around the corner. The best place to be. O, and you need to be able to climb stairs...but that's general in Lisbon.