Lovely place set in a big villa , at a stone's throw from the lake. The apartment is huge and as other visitors have pointed out, despite being partially underground, there is enough light coming through windows and doors. Bastian was very responsive and did all he could to make our stay comfortable. It took us a while to figure the place as we opened up the directions link from the AirBnB page which did not have the house number. It was actually my fault as the house number has been provided in a private message.
The place is huge and my daughter loved the big DVD library. The location is ideal as it's a stone's throw form the lake and you can take leisurely walk to Montreux along the promenade. I loved the city and it's vibe and would love to go back again. I would recommend atleast 3-4 days to soak in the atmosphere and maybe a day trip to Laussane.