I read this book entirely on flights from Burbank to San Jose, and it was great in that every chapter has a simple, actionable item which will make workflow in your group more efficient. I've seen some criticism of the book in that it's too simplistic. While it's true that many of the tools are simple, it's worth asking yourself:
* When is the last time you wrote down clear goals for a project or road map and shared them with your team?
* Do you immediately schedule bug fixes as bugs are discovered?
* When you have a team member who is essential to a project, do you do everything you can to get them out of that role?
These things are all simple in retrospect, but many times they are overlooked in the day-to-day. This book is a great reminder to actively pursue these things, and it will likely have a tool or two that you hadn't thought of.