Product review (4 stars): works well
Works great, although I didn't need to hookup to a drill; just more complications.  The rotating brush may have helped the very fine residue, but I was mainly using it for clearing out a major buildup.  I used the extention: http://www.amazon.com/gp/product/B001652LO6/ref=oh_aui_detailpage_o00_s00?ie=UTF8&psc=1 to just push out any lint straight out instead of carefully drilling and pulling.