Great White Mycorrhizae Roots Boost

Anybody ever use this stuff? I'm interested in hearing people's reviews.

it is a great product that shows a ton of root growth as visible change and much happier plants. i used it for a couple of years but changed to pondzyme with barley, it is a fraction of the cost, uses less, and works as good or better. the biggest difference is one is marketed to weed and one is marketed for pond use through nurserys.