Product review (5 stars): Great Product
This product helped me to clean my dryer vent and it is now blowing steam out of the house instead of inside the house like before.  I tried blowing the vent with a blower and looks like it just packed the lint tighter and was acting as a barrier to condense steam that then flowed water back down. I think I got my money's worth. I was heating the house before because  the hose would leak steam due to the pressure built up caused by all the lint in the vent line, and my AC was working harder to cool it. Love it. I finally used the blower to blow a lot more lint out after removing most of the lint.  It is more flexible that I thought.  Take care and only go at low speed and only clockwise. .