Everything was good except the lack of heating inside of the apartment. It was really cold especially at night, felt like even colder than outside (~13 degrees). Gonçalo told that on Christmas, people who rented the flat, dried the clothes on heaters and there was unpleasant accident and Gonçalo doesn't want to risk again and provide the heating. It's really understandable, but we are traveling with parents, so it didn't fit us and we had to change the apartment.
Anyway, the host was really friendly, he gave us some recommendations about the city. The flat was good, clean and in a perfect location. So I can recommend this flat in warmer seasons!