My complaint with this product is that it left a residue on the LP I tested it with.Ditto my experience with the similar (looking) Nagaoka record cleaning roller, especially when the roller is new.
Such rollers are also ineffective for true record cleaning, since they can't reach down into the grooves.
Given these limitations, I use it only for what it's good at: removing the line of surface filth dredged up by a Hunt CF brush from VERY dusty LPs prior to wet cleaning.
FWIW, my AIVS/Loricraft wet cleaning process removes the visible residue. Since I only use the roller on truly filthy records, a removable residue that's not down in the grooves is a minor inconvenience... better than clogging up the bristles of my wet-cleaning brushes with dust, IMO.
On ~80% of LPs I can remove the visible fluff with the Hunt CF brush alone. In that case I don't bother with the roller... just go directly to wet cleaning.
My $.02