Never heard of it. Its a bit risky to buy something like that, and unknown powder. If you don't like it for any reason, and there can be a lot of reasons not to like a particular powder, you are stuck with it, big time! At the 9mm starting load you are looking at 14,000 rounds to use it up.
IMHO, to buy 8 lbs of any pistol powder, I would have to be shooting a hell of a lot of it, and I would have to be absolutely in love with that powder. As an example, back when I was still shooting competitively, I used Winchester 231 pistol powder, I was shooting and reloading 900 to 1,000 rounds per week in match season. I bought Win 231 in bulk, I used a lot of it and I really liked it. If you aren't shooting and reloading enough to go through that in a year, you probably shouldn't buy it, plus I still wouldn't buy it unless I had used it a lot and really liked it, which I doubt you have that kind of experience with it.
Another example, I bought a pound of Blue Dot to experiment with, thinking it would be a good powder for 9 and 40, its terrible in 40, TONS of unburned powder, I think it needs magnum loads and probably magnum primers, but for normal loads in 40 its not good, too much unburned powder and the inconsistent burning means excessive variables in velocity, sure glad I don't have 8 lbs of that!