Zacharie is an outstanding host (as evidenced in many other reviews and confirmed here by me!). In fact, I stayed in a different apartment that he rents out in Versoix (veru close to the one listed). It is slightly bigger and when I came to check in he felt it might better suit my needs so offered me that apartment instead. It was perfect - the location, the cleanliness and the spaciousness - all spot on. Highly recommended.