Bianca and her brother are nice people and I did not have any serious problem with them or the room I stayed in. I do not speak French, but it seems to me that the family speaks Portuguese, so, I was able to come by with my Spanish. Although the language barrier the communication was easy. It is true, that they do not lock the apartment and I did not have a key to my room either. This might be a cultural/Swiss thing. There was a party one evening in the apartment, but it finished at 23:00 as Bianca and her brother promised, OK for me. All around fine for a short stay.