Product review (5 stars): Awesome - saved me lots of money
I bought this based on the high ratings and reviews.  They're all true.  It couldn't have worked better.  Used it to clean my dryer vent (from inside the house w/shop vac) and it made a HUGE difference.  No more heat or dryer smell seeping back into the house.  It worked great with my cordless drill but also worked well by hand without the drill.  It made the vent cleaning EASY and almost fun getting all that lint out of the vent pipe going up inside the wall.  The hardest part was moving the dryer out and back in (which wasn't a big deal).