I haven't used it, but a buddy who owns a chemical lawn treatment company applies it. He said it is supposed to help keep the water in the soil where the roots can use it. He also said that on a humid day, it's supposed to actually pull water from the atmoshpere and into the soil. It's basically supposed to make the turf use water more efficiently. I had asked about it on here a while back and got hardly any feedback.
What if the hokey pokey really IS what it's all about?!