Although building a habit-forming product *can* be a double-edged sword, (I've seen the author give a talk about avoiding addictive technology!) in some cases, it makes a lot of sense.
How do you help people keep their laptop updated? How do you help someone start using a password manager?
If you're working on something that's people ultimately really need, but that isn't all sparkles and glitter, this is your book!
There's a tear in the cover, and also some highlighting/a few notes because I read the crap out of this and used what I learned at a startup. It works!