Nagaoka Dust Roller...Best or Worst Thing Ever?

I have a roller made by Nagaoka/Rotel that appears to be amazing, but I'm not sure about risks that might be related to using it. It looks kind of like a lint roller, but the surface is made from a soft tacky-feeling material that attracts dust and is washable.

It is apparently soft enough to form down into the grooves and pick up the dust in there, which it seems like it's really doing. After brushing a record, playing it, and then using the roller and playing it again, there is a definite reduction in surface noise. There's no residue left behind, and you can wash the dust off of the roller with a little soap and water to completely restore its tackiness.

NOTE: I have a normal wet/vacuum cleaning process that I use to get the deep-groove crap out, and I use a carbon-fiber brush in my regimen as well. The Nagaoka Roller is not a substitute for "real" cleaning, but it seems like it might do a really good job between cleanings.

Has anyone here ever used one of these devices?

-Dusty