Location is excellent, place is just a few minutes walk from yellow, red or green metro lines in a really nice neighbourhood.
The apartment is cosy and well equipped - you can easily feel like home.
And most importantly: Maria is the perfect host, a very friendly and helpful person, who cares. Cares about her guests as well as Lisbon - so you can get useful recommendations and good "hints from a local".
I also need to mention, that Lisbon itself is a perfect city to visit. Mild weather, friendly people, lovely food, great (GREAT!) Portuguese wines, reasonable prices, beautiful sights.
I enjoyed my stay a lot and would not hesitate for a moment to book it again. Very highly recommended!!!