Read this on my boss's recommendation. The book was a mix of some helpful thoughts and a lot of dull anecdotal filler. It read like a lot of other stunt memoirs, feeling mostly like a collection of printed out blog posts. This feeling was even more pronounced as most chapters include comments from an actual blog the author kept while writing this book.
The stories illustrate the overall point - that you're responsible for your happiness, and that focusing on your happiness can make you a more positive influence on people you come in contact with - well, but so much of it is either uninteresting anecdote or hokey corny platitudes (Calling the four main points "Splendid Truths" with an obviously exaggerated narrative of how she came to the revelation of these truths is particular eye-roller) watering down the useful observations. It's a fairly easy read and there are enough good thoughts in it that it would be worth checking out, but there's little here that isn't covered in other such inspirational writing and there are other blogs or stunt memoirs that focus on much more interesting people/events.