There is a lot I love about this book. It's well written and it makes its points very well. The focus on the stoics I especially love. It has two faults though. The first is its omission of any focus on practical application of the ideas it puts forward. The second is that while it's clearly written for a US audience and so has lots of references to icons of that culture, which is fine, claims that persistence and other similar traits are uniquely American (sic) limit the credibility of the author as an educated global citizen.
I strongly recommend this book. If not life changing, it's extremely useful. As are the cited quotes. Unlike another book I would also recommend on turning obstacles to advantages: Antifragile: Things that Gain from Disorder, Nassim Nicholas Taleb, and other books that have been personally helpful to me; Holiday's writing is so concise, practical and accessible I could recommend it to just about anyone
A short, well-written application of Stoic philosophy to our lives that inevitably brings its challenges. Some great stories about famous people illustrate the principles. Ryan Holiday, the author, is great at explaining the ideas and provides useful advice on how to implement them.
Ryan Holiday did well in using the examples of the greats (Teddy Roosevelt, Marcus Aurelius, etc) to show that resilience is the nicer way to live which gives more joy and freedom of choice. The book urges us to moving past the inconvenience of obstacles to their benefits.