Has anyone read their books, watched their training videos, or bought any of their products?

I finished watching their YouTube channel this morning and considered reading their book. For those familiar with them, what do you think?

Jeanette Isabelle
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I'm not sure whose twisted idea it was to put hundreds of adolescents in underfunded schools run by people whose dreams were crushed years ago, but I admire the sadism. -- Wednesday Adams, Wednesday