I came away with mixed feelings. I still have the highest regard for the quality of the products that R&F make. And I did learn about using an absorbent ground rather than a traditional acrylic gesso, and it was fun to try all the available colors. I thought the instructor was a little cavalier about using them directly on paper. If you want your work to last, I would not do it.
I decided to relax into the transient nature of things and did the painting above rubbing the pigment into paper with a bit of mineral oil (his recommendation). The result is rich, but thin color. No goo.
Myra's Dream, 2009, 22x30 pigment stick on paper