I made rank last October. Just wanted to say, you have a great product and I hope you continue to make it better! Thanks, McMillan! (CDC GOLD)

By far the best investment in ensuring you pass your CDCs with solid scores. I will always turn to McMillan Study Guides throughout my Air Force career. Thank You, McMillan! (Master Your CDC)

I recommend PDG Advisor as well! I made E-5 first time by 22.5 points WITH only a promote! (Facebook)