I applied in-person. The process took a year or more. I interviewed at Equinox (New York, NY) in Mar 2012
Interview
You just have to hang out there all the time and preach whatever they are saying, whether it is true or not. They preach about things like 'Intention' and 'Awareness'. Bettering oneself is ostensibly taught as a core value. But if you intellectually question the culture, they will not listen to you. They will reject you like a bunch of religious fanatics.
Interview questions [1]
Question 1
There really aren't. It's mostly about acting happy all the time. The 'Law of Attraction' is very popular.