Marc is very friendly. He is always prepared to offer help.
The apartment ist in a good position, you can arrive in 10 minutes from central station. And it is in the near of the Genève lake. It is not so large, but very clean. In the Summer time I felt not so hot in the apartment, because the sunshine did not burst through into the room directly in the afternoon.
It is very recommended. Next time when I come to Genève, it will still be my choice!