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).

I used the audio -- long and short -- and also AFH 1 Advisor. I studied for 6 months, 2 hrs a day, then a week before for 12 hrs for 6 days. I made TSgt by 12 points. Thank you, McMillan.

Made MSgt by 44 points my first time testing this year. PDG GOLD and PDG Advisor have been in my toolbox every time I tested. Thanks!