Never heard of the brand but bought a 3" 4 stage grinder for $28...and it turned out to be better than my old sharpstone and diamond grind. Grinds up bud quickly and evenly, there's a tiny guard around the outside to keep the teeth from scraping the top stage and creating metal shavings, and the screen does a really good job of collecting kief. Definitely a good way to save $40 over buying a space case
I bought one from my lhs a few weeks ago too and I like it more than my old kannistor, its actually a really nice grinder and the holes are the perfect size/space apart. I only wish it had a larger bud section and a smaller lied section, I'm never going to get an inch of kief lol but I fill that bud section all the way up