In case you don't know, the shtick is everyone wears a HRM, and all the groups current readings/results are posted on a big monitor.
You are supposed to stay just shy of the red zone ... i.e. "orange". I guess a group/accountability aspect or something.
My Lifetime Fitness started offering a similar thing.
Installed a bunch of TV monitors that run ads / play music videos all day long....until the class starts up, then they switch over to the Orange Theory layout.
Shit, I just watched a O.T. promo video, its almost like some way toned down semi-crossfit thing.