Sure it is 160 chf a month. They ask for a membership fee. But we got around it with A LOT of negotiating.
My wife tells me that is not that great. I go to the Migros in Stockerstrasse, I actually prefer it, just because I do weights and I have a salt water pool, sauna and stuff.
But her gym is better for yoga, classes, less "swiss" like, more like everywhere else.
BTW, have someone noticed how they have no "gym manners" here. Example, in the US if you are using a machine and someone is waiting, then you do one set, the other person does one set, here NEVER, its not like is freak science, its common sensce, (I guess )