When you buy this product, you know what you're buying! The principle is one of the oldest principles in magic!
Don't be disappointed, if you are not familiar with it! You will find an application for it! Focus on the effect, and how you're going to make it part of a storyline. The bills are awesome and will remain so for a long time thanks to the material used.
I will not use it in my close up repertoire, but definitely in my stage act or for shooting a close-up demo reel, TBH here there is a sound issue that you will have to deal with!This is covered in the tutorial with the amazing bill to coins routine. I don't regret purchasing it, E=MC2 provides tips and insights that will help anybody in their creative process.