The lady who was there at the check in was very friendly and showed us everything we needed to know about the area. The accommodation is as described and due to its location it can get a bit clammy inside.
The accommodation is very central and there are metro stations in 2 min walking distance. Also there is a small shop right by the flat where you can get all the basic stuff you need, and is open almost anytime.
The fridge, washing machine, etc. was working perfectly but there is no oven which is good to know.
All in all I can recommend the stay for a short visit, because of its good location in beautiful Lisbon.