Scenario: 1 person, staying for 2 weeks to do some distance work from Braço de Prata area.
Short version: Should I return to Lisbon, I would probably try to book Filipe's place again. Great location, good public transport connections, grocery stores nearby, several green areas nearby. Comfortable living.
Longer version:
Location - Apartment is on a well connected street ~20-30min walk from old town. ~10min when using public transport. For shopping you'll have Continente just across the street. Alternatively Pingo Doce is ~5min walk down the street. Both stores close at 9PM. After that you'll have 2 mini mercados nearby which close at 10PM. Do note that mini mercados probably won't accept foreign credit cards.
Literally 1-2min walk for a park with basketball court, ping pong table, pond (and duck, chicken, geese just chilling around), outdoor gym and dog park. There's another park about 8 minute walk away (Jardim do Torel) with a scenic view overlooking the avenue below. It's a really nice place to sit on the grass, drink some beer and play an instrument. Students from nearby medical college seemed to gather there. A great place to make some new acquaintances. Sadly it closes at 8PM, but depending on the season you can enjoy the sunset.
Nearest pharmacy was about 5min walk away.
Bus stop is just out the door and Intendente metro station is 8-9 minute walk which would also be the closest destination when coming by metro from airport (requires line change from red line to green line in Alameda station). Metro is probably the preferable way to get to nearest train station Roma-Areeiro, about 20min commute.
Apartment - Third floor, under the roof. Has everything you need for living. Can cook (induction stove, single plate), can watch TV (mostly in Portuguese). Can take a shower (it seemed to have a massage function as well ?). Bed was comfy and wide. However depending on the climate you're coming from the blanket might be too warm and heavy. Can remedy that with AC.
A table close to a wall socket so you can work from home. Wifi seemed to be around 24Mbit/s download speed (no problem streaming from Spotify or watching YT 1080p@60), though I seemed to get a few short disconnects during the day, for about 10 seconds, then it'd reconnect.
Filipe had left a leaflet for a laundromat nearby for the place lacks a washing machine. However there's a bowl large enough to do some handwashing. Clothesline is outside the kitchen and bathroom windows. Might have to buy some more clothespins though.
The stairs leading up to living area are quite steep. So if you're returning, having drunk a few wines too many, take care when climbing.
A thing to consider is noise. This again depends on your own background, perhaps this doesn't bother you. It's not the busiest street, but keeping the street-side windows open at night might disturb your sleep. Emergency vehicles can zip past with their sirens on. And even with blinds down, the blue lights will probably light up the room for a second or two.
Sadly the views from all windows are not good. You won't see the bustling street from street side windows. And the other side shows the roof tiling of the next building.
All things considered, this was more than a pleasant stay and I'd happily do it again.