The apartment is just under the roof of an authentic lisbonstyle building. It's really nice and astonishingly quiet, especially given, that the location is very close to the entry path of the landing planes. It's not very spacy but still reasonable for two and has got everything you need. Special thanks to the very attentive crew of Lisbon Inn, who take care of the apartment, as they were very helpful and patiently answered all my stupid questions.
The deposit was to be paid in cash, and returned in the same way, which I didn't like too much, as I had a busy schedule and had to make appointments for that. But the staff was very on time, so it was ok.