I've been going to
Life Club in Malley since May and I'm very happy.
I initially went for their Fit Boxe course, since I had been doing martial arts but wasn't happy with any of the schools I tried here, but then I also took up Zumba. Since I got a 6-month membership, I also participate in the muscular reinforcement courses, body sculpt, interval pump, etc.
You can either get a card for 10 sessions, for 160CHF, or a 6-month membership. Usually it costs 590, but in december and july there's a 490 chf offer...