I haven't had a chance to use this since I received it, but I used one at my card group, and we used it on velvety card stock and it was totally AWESOME. We sprayed it with glitter glue (green on green) and it just sparkled!!!!! Will be using this a LOT as I can see a lot of opportunities for it.
I TOTALLY recommend this product.
These embossing folders add great dimension to your cards or other projects. I used parts of each to emboss small squares for a card, and it turned out beautifully. One would never know that they came from a Christmas set.