Product review (5 stars): Great Product!
I was pretty skeptical about this when i purchased it but it is one of the best products for home maintenance I've purchased.  Easy to use and worked perfectly with a shop vac.  I won't have to pay someone to clean the dryer vent.
It would probably be easier with two people just to have one feed and one work the drill, but i had no problems by myself this weekend.  Highly recommended.