Excellent app! This app is amazing if you have time to kill on trips. Or sitting at work or anything else where you can't take your books! The app single-handedly made Staff for me on the first try. I answered 100 questions twice a day. Once in the morning and once before bed. Only picked up my book to review wrong answers. It might be expensive relative to other apps but it got me an extra boost in pay worth itself in the first month! Worth it. (PDG Final Exams! NCO App)

I used PDG Advisor when I tested for Staff for the second time. I tested in 2014 when the promotion percentage rate dropped drastically. And not only did I make it, but I made it by 20 points!!! Best $90 I ever spent! I would recommend it to any and everybody!

I just wanted to drop your company a short message and say thank you for the Air Force study guides. My background in academics has always been just at the "C" level throughout high school and college. And as you may know, that just does not cut it when testing for promotion, that was until about 10 years ago when I started using McMillan study guides. In those short 10 years, I was able to succeed well beyond my expectations thanks to PDG GOLD and the Single-Answer and Multiple-Choice book. It is my belief that because I used those products, it assisted and drove me to make my next rank which I was able to sew on yesterday. Every chance I get when talking to the younger troops, I push your products. I let them know that without your products, I would not be where I am today and they should invest in their future by investing in your product. THANK YOU again!!!