Just had a wonderful two week stay at Rita's apartment in Graça. The location is outside of the big tourist areas, so it's more quiet and uncrowded, but close enough to walk to Alfama and Baixa in 15-20 minutes for sightseeing. E-bikes and electric scooters are plentiful for further jaunts to the other neighborhoods in the city. There were some excellent local restaurants nearby, and a convenient store right next to the apartment that has most everything needed and is run by a very nice woman who helps Rita with check-in and questions.
The apartment itself was very comfortable and well-equipped, and tastefully furnished. Wifi is strong and fast for working and streaming. I was there during an August heat wave and although there's no AC it has many windows to open for cross-breeze and an amazing fan. Be aware that the bedroom faces a small street on the ground level so if you open the windows you will get some street noise and people walking may see in (if you are sensitive to noise or privacy). The neighborhood is very safe and we felt comfortable to sleep with the windows open each night.
There are some minor maintenance fixes to be done but the apartment is an excellent choice if you want to stay in the old city but have some peace and quiet and space. Would definitely stay here again!