We enjoyed our stay in Nuno and Ana's place. The self check-in is very convenient as we arrived quite late. Also the metro station is right in front of the house so it's very easy to get the center of Lisbon within 10-15 minutes.
The flat is very bright and clean, though you may close the windows fully during the night which is good. It's the 2d floor so it's really noisy in the morning.
The kitchen has everything essential for cooking even salt and pepper.
Also there is an iron and a hair dryer (that wasn't mentioned).
Nuno and Ana are very friendly. I definitely recommend this place!