Dirty and mediocre

This gym is advertised as a "western" gym, but it is indeed very Chinese. In fact the staff does not speak a single word English.

I had a bad start with the sales people desperately trying to drive up the membership price with all kinds of scams, I had to bargain for more than an hour to get a proper price. Very annoying and tiring, and seems like they are trying to take advantage of non-Chinese judging from how my Chinese friends got a much better offer right off the bat.

The swimming pool is overcrowded, which would not be too bad if people just bothered to follow the simple rules of staying in the correct lane. But you see fat, lazy people hanging out in the fast lane chatting like it's some kind of jacuzzi, blocking anyone who actually wants to have some actual exercise. For a proper swim you need to carefully pick the time. In general people never seem to care much about gym regulations, groaning loudly when lifting puny weights which they then slam on the floor to advertise how strong they think they are, and walking around showing off their bare bellies. Gross.

I suppose the points above says more about Chinese than the gym itself though, but it's definitively not a "western" environment as they advertise.

The hygiene standards are very poor. The locker rooms smells like pee, which is probably due to the fact the cleaner is rubbing a dirty cloth around in the bathroom then rubbing the same cloth all over the locker room floor afterward, bar any trace of soap or cleaning liquid. To "clean" the sandals used in the swimming pool area, they throw them in a barrel with dirty water. This is a good place to get fungus or other fun diseases for your feet I think.

The male staff are quite friendly - to any girls they want to pick up. You see them swarm around girls working out. If you need them to spot you or help out in any way, they'll do it reluctantly (unless of course you're an attractive girl, then you will find their hands "helping" you all over your body).

On the bright side, the classes are quite good, you find all kinds of classes included in the price. Yoga, spinning and what not. This is the only reason you should consider Ozone. And the machines are relatively new, and they have quite a good selection of them as well.

Note, I only tried three of their branches, some are better than others. I also tried several other gyms in Beijing, smaller traditional Chinese ones, and I'd say except for the classes, Ozone is just like any much cheaper Chinese gym.