If you want to include money props in your fantasy campaign, this product gives you an easy way to do that, and it's much less expensive than purchasing sets of manufactured fantasy coins. I think it's a cool idea, but my players gave it the cold shoulder when I tried it. They enjoyed counting the currency when received as treasure, but didn't take to using the bills like "Monopology money" when transacting business with NPCs. Your mileage may vary.
Using PDF layers, this product puts you in control of the mint; you get to decide whether the queen, for example, appears on the 100 or 500 or whatever value of bill. In a way, though, the product gives you almost too many choices; you can combine the word "gold" with the silver background, for example. Also, by default, the file (at least the one I received) has all layers turned on, so you just see a confusing mess when you first open the file. I also wish the product included a platinum level—guess which game I play most?
[3 of 5 Stars!]