It had interesting exercises, but I didn't really like
any of them and didn't feel half of them helped me actually move forward with the story. I didn't find them helpful at all (well, maybe one or two), and it just seems like it'll lead you to a very formulaic novel (even if at its very core every novel is formulaic, as it follows a beginning, middle and end, after all).
Also the basic tips it gives behind all the exercises and rambling are pretty obvious tips.
This might work for some people, but it's not working out for me.
It might also work if all you want to do is get down on paper a novel or that first novel because you're terribly blocked or it's your very first and you're super nervous... but that's about it.