There is a dance hall with a machine and changing rooms (small, located inside the hall)! Not presentable, but affordable. I recommend taking your own speaker, because it either doesn't work or is buggy in the gym! In general, the hall is good, considering the prices on the left bank, it is the most affordable!
For 2023, the hall is outdated, for dancing classes.
There is no infrastructure - basement, uncomfortable locker room, no water (comparing with other halls).