I'm not one who learns much by reading alone. McMillan Study Guides are a blessing for me. (I'm using the PDG GOLD.)
W.B., Cheyenne, WY
I was selected for promotion to SSgt. It was my first time testing and I also had BTZ under my belt. So I figured it was a long shot with the 15-year low percentages. Ranked 5th in my AFSC, probably right behind the 7th year SrA. (PDG Advisor)
C.N., Tampa, FL
This was the only study material I used, and I just made SSgt first time with 20 points to spare! Well worth the money, if you use it properly. (PDG Suite NCO)