I've seen it introduced in a number of schools. I think that when practiced with fidelity it is equitable. I also think it can help promote some very good school skills. However it has also been my experience that educators rarely get the support that they need to continue doing it with fidelity. I encourage teachers to start slowly, and get support from the consultant as long as possible.
I don't know about how it promotes resiliency. From my experience, it's mostly focused on teaching children to behave the way the majority culture wants them to behave (sit still, be compliant, speak when called upon).
I'm interested in hearing about your roll out!