i used groupon and went for their trial. I like the trainer - friendly and helpful. If wasn;t for my existing gym member i would have sign up with them. The owner was there explaining the pacckage but not pushy.
It is a combi of cardio and weight training, which i think should help to lose weight. Good for those who need trainer but did not want to pay trainer per session, it is expensive to engage trainer in normal fitness centre.
Downside is Place is a bit run down (in amoy street) and small. No hot sauna facilities.