Nope, but any website that claims miracle cures, uses pseudo-science mumbo jumbo, and calls horse owners 'moms' sure as heck wouldn't get my money! Snake oil salesmen, nothing more.
I personally haven't used it, nor met anyone who has. I don't think that it would work either, for similar reasons which Speed Racer mentioned. Although, I'd love to hear if someone has had good results with it - would be interesting to hear.
Also, I still like to call the vet and get them to treat and examine my horse in any cases of colic. It's better knowing that the treatment actually works and how extreme the colic is then giving your horse some 'magical cure'. Sometimes mild colics, can turn out to be a little bit more dangerous...