My experience: I read the book, learned the concepts. It was great, and I even setup OmniFocus (Apple only) on my iPad and iPhone. Life was great, and then I

My experience: I read the book, learned the concepts. It was great, and I even setup OmniFocus (Apple only) on my iPad and iPhone. Life was great, and then I changed employers and I was back to Windows and BlackBerry. It completely broke my workflow and I spent (WASTED) months trying new tools and finally dropped it. I am now using the ToDo templates in OneNote which is a much simpler approach, but still use many of the concepts.