We stayed at Joana's place for 4 nights in May. Overall it is very nice place. The bedroom is very quiet. The bed is quite nice and comfortable.
Our son was sleeping on the bed near the front door and it was a bit noisy when people entering the building and walking upstairs.
The location is perfect if you are looking for quiet place. There are several good places to eat. We enjoyed "Season" restaurant nearby. It is in the list of recommended restaurants in Joana's note in the apartment. There is very nice icecream bar on the same street R. Nova da Piedade next to the restaurant.
Close to the apartment there are a stop of the historical tram #28 which goes to the old center as well as a stop of bus 727 which goes to Belem.
The apartment is equipped with all kitchen stuff we need. There is an own small back yard with hammock and a little table. I would recommend this place to stay few days and explore the city.