I would highly recommend staying at Salvia‘s place.
The flat is clean and beautiful and has everything you could need. My room was cosy and quiet and just nice to come home to.
Salvia is a very welcoming host. When I first arrived she picked me up from the station and she even prepared some nice meal.
Sharing with Salvia has made my first month in Zurich such a positive and relaxing experience, that I even chose to extend my stay.