Stainless Steel Tumbler Media?

Any reloaders try these products yet? I’m interested in the stainless steel media. See http://www.stainlesstumblingmedia.com for products - I’m thinking about the 5 lbs of media and, other than washing it occasionally to remove the dust, it should last forever. (But note they say it will not work in vibratory cleaners. You must tumble.)