April, your review of their replies to your questions (when no one else did) seems a bit slanted negatively as evidenced by your use of caps. I am trying to see reviews of whether the stuff works, despite having invested significantly more than $50.00 already. I provided 5 soil samples to them that they tested for me for free to be sure the soil was compatible, which it was. In addition to buying a pale for $2k, I bought a smooth drum roller and a pad foot roller to ensure proper application. While I could have rented these, we plan on doing several miles of road and purchasing was more economical than renting.
Substrata sent out their production guy to oversee the initial application to be sure we were doing it right, which was appreciated. The customer service has been great, but I'm a guy who doesn't care about the length of their white paper. As someone serious about a solution, I invested thousands of dollars in what I hope is a great solution for our needs. I get buying-power is relative, but you won't invest $50 to do your own test?
What I find lacking on the internet is reviews of long term results. As such, I plan to review my initial results after the 3-day cure period, 6 months from now, and a year from now. Why am I still researching results having already made the financial investment? Because like you, I am skeptical that it does all it promises and I guess impatient, so I'm looking for a little reassurance while I wait for the results. My suggestion to you is to "roll the $50 dice" and do your own testing.