I go climb there every week and I am very satisfied.
This is sure a small facility, but very central and cheap (season prince 125 / 250 CHf from september to june) especially compared to other sports in Geneva.
There are around 8 walls up to 13.50 meters hight and on each are 3 to 6 tracks.
Range for all levels and tracks are chaged 3 times a season.
No supervision and no material rent but very friendly atmosphere.
Sometimes crowded but open til 10 PM.
Ideal for a training before going out in the spring.

"Probably the worst climbing wall I have ever visited... Certainly the most expensive. Overpriced, over-crowded, poorly set routes (that are changed once a year at most), wobbly panels, polished and dirty holds and features... It's only merit is that Geneva has no other walls for roped climbing. Panstructure in Vernier is vastly superior, but only caters for bouldering."

"Six well equipped 12 m high climbing walls with tracks ranging from 5a to 7c+. No supervision. Small training block. Prices excessive (26 CHF adult, 13 for students) but the membership card makes it really cheap for regular climbers (220/110 chf per year). Easy access and the neighbouring Vernets Pool adds a real plus!"

"Extremely small and very noisy climbing wall. Very crowded and at 26 CHF way too expensive. No information on difficulty of the individual routes. Very, very disappointing."