Effing brilliant product! I've heard that another of my favorite secrets, "snail bait," is the same stuff, only of larger texture.
Beer is great to get rid of snails also...put a lid from a jar or a saucer in the garden, they crawl in and cannot get out an drown. They love beer. The saucer should be put in the dirt up to the edge so its almost level with the dirt. Keep husband out of the garden...:O)