We stayed in Salvadors apartment in Belem for a couple of days. It is a cute place with a homely feel, as you can see on the pictures: high ceilings, wooden floor and Portugese style tiles in the well equipped kitchen. Because of the strategically placed windows, there's always fresh air and it never gets too hot, even though it is in the city.
Belem and it's attractions are on walking distance from the apartment, and the center of Lisboa is easily reached by public transport. There's a supermarket around the corner.
There's free public parking on the streets, although sometimes you need a little luck to find a place. Didn't have any problems with that.
Thanks Salvador, wishing you the best!