Going To Hell...Who's Coming With Me?

Is anyone familiar with The Writer's Productivity Crash Course? Useful, or bullshit?

I mean, I know "useful or bullshit" largely depends on what works for each individual person, but the look inside doesn't give me much to go on so opinions would be appreciated.

Today, based on someone gushing about it in one of my writers' forums, I went to pick up Rachel Aaron's 2k to 10k: Writing Faster, Writing Better, and Writing More of What You Love. As it turns out (thank you, Amazon memory), I have owned this book for almost two years.

Much like with the Libbie Hawker blurb book, my failure to remember this book was a sign.
( Again, this gets long )

So, another writing advice book that just doesn't work for me. It isn't wildly at odds with how my brain works, and honestly, a lot of it resonates with how I write fanfiction. But by the 50% mark, it just hadn't given me anything concrete or enlightening enough to keep me reading for the rest of her advice.