Product review (5 stars): Excellent vent cleaner
Awesome tool!  This thing did a great job of cleaning our dryer vent.  I really like the shop vac attachment that removes the loose lint as you work the brush.  Made the job a snap.

Be CERTAIN that you read the directions!  You can't just screw all the extenders together and turn on the drill.  If you do, then you won't be happy with the outcome.  The extenders need to be contained within the vent pipe or they will flex all over the laundry room.  :-O  Do it right and the results are awesome.