Good space for a couple or family - perhaps a little small for 4 adults. Interesting, 'proper' neighbourhood - away from tourists, but facilities are close by, including a market. The market transforms at night into a lively place to eat and drink. If staying here, definitely check it out.
Transport links to central Lisbon are good (the historic 28 tram and a night bus which was quick to get us home in the late evening - but the stop is a 5 to 10 min walk away (which was fine for me, but I suppose some might find it inconvenient).
The bed was comfortable. The bathroom very good. The kitchen/diner/lounge area was perfectly fine. The property is in good condition. The person who handed over was very friendly and helpful. It was one of the better places I have stayed at of this type.
There is always a but. This one may bother you or it may not. It didn't bother us that very much. It is on the flight path of the planes coming into land at Lisbon airport. They are still quite high up , and the planes didn't seem to land during the night, but they might wake you up if you were planning on a lie-in. As I said, it didn't worry us.
Overall, this apartment can be recommended.