Product Test: Gnat Nix!

I saw this product and decided to give it a try. Not that I have a bad infestation but I've had a few and the diatomateous earth I use as a light preventative top dressing gets soggy when wet. This product is made from recycled glass. I assume it works like diatomateous earth in that it slices em' & they die. 
A friend of mine said his friend uses it amd had good luck so we'll see how it goes...