I recently flew from Geneva after a RS My Way Tour. I found Hotel Cristal http://hotel-cristal-geneva.hotels-geneva.org/en/ to be very convenient to the airport. I stepped off the train and was literally steps to the front door of hotel They will give you a card allowing you a free ride on express train to Geneva Airport (6 min). The staff all spoke English and were extremely helpful. My converter did not fit the plug and they provided one free of charge. My room was clean and reasonable. $95. Will stay there again.
Kathleen