I read this and Hooked in the same week, found Octalysis to be a deep dive into our motivations which lead to surprisingly powerful framework for building products, changing one's behavior, or designing experiences of any kind.
Read this book in full a while back; very thorough and applicable. It's more of a complete framework and less of a "quick idea" sort of book. I've been following Yu-kai's work ever since - awesome stuff.
I find myself recommending this book to all my entrepreneur friends. Nobody has been disappointed. Best actionable framework I've seen for crafting human behavior (I've read Hooked, Thinking Fast and Slow, Switch, etc.). There's even a section that takes many of the popular books/frameworks and projects them onto the Octalysis framework. I'm just not a big fan of the name..."Octalysis" is unnecessarily limiting and not descriptive of what it actually does (there's already a 9th drive). Naming aside, this is a worthwhile read for anyone who deals with humans.
Read this book and I highly recommend it. I have used the Octalysis Framework in the development of the Peer SaaS Commitment Management Web App. Will continue to use this framework as we enhance the platform in the future.