The location of the apartment is beautiful. In a very nice area of Lisbon and there is a little park right in front of the apartment where you have a great view.
The apartment iself is very dark, even for a groundfloor apartment. And it is also quite noisy: everything is very close together, there are a lot of sliding doors that don't close properly and you can also hear the neighbors quite clearly. For a short visit to Lisbon I think the place will work really nicely but I would not recommend it for longer stays.