We had a great 2 weeks at the studio. It is very spacious and has everything you need for a longer stay. The bed is very comfortable, the shower is good, and we were able to cook some great food in the well-equipped kitchen.
Diane was a great host and answered any questions quickly. The toiletries provided were lovely and the studio is full of quirky, interesting items.
The station is just a ten minute walk away and Versoix has most things you need. In just 15-30 minutes you can be in Geneva and if you hire a car you can visit Annecy, Chamonix or Lausanne very easily.
I would definitely stay at Diane's studio again when on an extended trip for work.