The place Campolide is lovely decorated and offers great views, especially in the evening with the sunset. It is also close to the main bus/train station. There is a local train station even closer (10 min walk) with which you can go to Sintra for the day. Within 3 minutes walk you can find a supermarket, tram and one restaurant with the best chicken “A Valienciana” (recommended by Rick Stein).
As a family of four the flat was however a little small, especially the kitchen. Fortunately the balcon is quite big so it helped us, as long as you can handle the planes flying every 5 minutes during the summer. Fortunately it stops during the night but starts again early morning. We stayed there four nights so having a washing machine in the building was quite useful as we were travelling lite.
Communication was good.