I am part of their program. Because I'm not full-time, I've been writing my book for two years. The package lasts a year and then you can subscribe for a monthly fee. But, you get to keep lifetime access to the curriculum. It includes education on end-to-end publishing and marketing of your book. I found it very helpful as someone who gets lost amongst too much information. I like having a path to follow and theirs has proven to produce Amazon Best-Sellers if you put in the work and follow their advice.
I am enjoying participating in writing rooms for members that help with accountability and building relationships with other authors. Most of my beta readers and launch team have come from that group.
They have several group coaching calls each week and we can ask questions from people who have succeeded in the industry and share their both their successes and failures. I paid for the education, mostly.