I stayed for about 2 months at Rose's place. The apartment is well located for commuting to EPFL. It is only a short 5 minute walk to the next metro station (Vigie) where one can take a metro which goes directly to EPFL. The apartment was very clean and the room which faces the backside of the building was very quiet considering the central location of the apartment.
Rose as a host was very friendly and thoughtful in her interaction with her guests. Although the apartment itself is very nice, she, with her welcoming attitude towards her guest makes it an even nicer place to stay. As previous reviews already asserted she definitely earned her "super host" badge. Besides, she is a very active climber and she took me for two trips to the nearby mountains. I would give her extra stars as an tour guide if there was a category for that on airbnb... ;)