Any one use or have used Desert snow as a substrate?

I saw some pictures that ben renick posted with a substrate that is called diamond soft, which was later on in the thread said to be very expensive since you can really only get it by pallet, which is nuts.
Well later on in the thread someone mentioned Desert snow, so I went to reptilesupply.com and they carry it. Does anyone know what the pro's and con's are of Desert snow substrate in their own experience?