The stay went very well. Thaiane, Samir and the one and a half year old Amelia were very friendly. The room was cosy and had a private bathroom.
The flat is not in the city centre but it is well connected and super close to the bus stop which runs every 15 min. There are also night buses.
The only thing is that if you take the night bus to go back to the flat, I recommend not to follow the route of google maps that leads you through a park with no lights at all and is really dark. There is a much safer alternative route that leads directly to the flat without passing through the park.