I've used it, no issues. Wish it was milled finer though... If I had the choice I'd buy Sani-chips, but can find it around here to save my life.
Yeah, I do wish it was smaller! Im using newspaper now...I want to find diamond soft and try it. Sani chips are great, but not as popular with balls. I love it though, clumps to everything. But its a pain to clean up if you spill some..lol.