We spent with our teenagers 5 very pleasant days in this small but functional and quite pretty apartment. The street is noisy but once the windows are closed we sleep quite well. A little more crockery would be nice for cooking (pot, cutlery, frying pan and dishes to add). The check-in with the person from the agency was a little fast but we were lucky to have it early in the morning so it was good and all the emails were answered quickly.
The street is pretty with its view overlooking the Tage and there are several very practical little shops and very friendly vendors, the best little grocery store being in the 2nd street down on the left.
We were 10 mins walk from the Pantheon and a very nice square for a drink and very good cakes and also the Saint Vincent monastery. Several bus lines in the street very convenients and tram 28 at 10-15 mins walk. Train Station for Sintra not very far by bus. Use Google map itinerary for everything, very practical to go to the center or elsewhere, buy from an automaton at a railstation or the metro a zapping card to load with 10 euros for example this allows you to make some trips at 1.35 euros instead from 2 euros in cash to the bus driver and works in metro and train too, for example for Sintra or Cascais.
Possible to return home by a little walk and bus from Rio alto after the bars close at 2am.
Airport easy to reach in about 40 minutes by bus and bus or metro or uber for 6-7 euros.
With a car, parking spaces around the street with not very expensive paid parking around 2-3 euros for 4 hours.