Gyms in Chaoyang/Sanlitun area (Beijing)

Hi Internations Beijing Community,

I just arrived in this fascinating place and am trying to find a decent gym close by in Chaoyang/Sanlitun area.

I've checked the Westin and Kempinski Hotels which are close by, the Westin looks quite nice but its a bit pricy. Anyone got recommendations for (non-hotel) gyms around there?

Anybody has a hint how much you could bring them down in terms of price - in Westin Hotel I'd get -20%. Anybody has experience in this regard?

Thank you for all tips and ideas you have! I will be attending the big Internations event on Friday, I look forward to get to know you guys then!

Cheers,
Chris