Perfect! This is the sole study guide I used this past year for studying. I started about 2 months prior to testing. I am not the best at studying and I get distracted easily. The app is very well organized and easy to use. Well worth the $50. I just made E-5 my first time testing thanks to this app. (PDG Central for Android).

Thanks for the outstanding study guides. I know for a fact I would not be testing for SMSgt at 13 years without them. I truly applaud the McMillan team for their efforts and amazing products! (PDG GOLD)

Awesome. Studied this and this alone and made a 91 on my PFE!!! (Mobile App)