Actual Vermiculite Vs. "Hatch Rite"

I have been seeing more and more threads out there about people using a product called "Hatch Rite" as a viable substrate for eggs in incubation.

Personally, I'm used to using vermiculite.... Has anyone used hatch rite? If you guys had to choose, which one would you go with... Let's say cost is out of the scenario here...

What are the pros and cons of each?

Thanks,

Zach.

read said threads, they give all of the info you ask for