PF gets a brad wrap and it has some weird things there, but its a bargain compared to other "retail oriented" small gyms.
90 min a day- wow, thats a lot in the confinements and "boringness" of a gym. The "shaker" sounds cool, im guessing the light is just for looks though.
I used something called a "chi" machine at a PT- lay down and put your feet in it and it shakes you, e-bay ect online for under $300.
Apparently, the light is supposed to be more than looks. On research that is. But this specific device might be a gimmick. Not sure.
I don't try to stay an hour and a half, but after cardio warm up, weight training, cool down, and hydromassage, that's where I'm at. I have also incorporated their row machine into my regimen every other day. Fantastic workout.