Your products are first rate! Anyone who doesn't use them is losing out! (PDG GOLD)
I liked it for on-the-go studying. It is like having a pocket PDG study guide. (PDG Made Easy! App)
The new PDG GOLD Version 4.0 seems to be a great upgrade to the previous version. I did enjoy all the games. They made studying much more enjoyable and kept me wanting to play more.