Product review (5 stars): You need one of these if you have a clothes dryer.
I couldn't believe that my vent duct could hold so much lint as had been described in several articles that I read. Ordered this and jumped right in......I was s surprised that I went to my neighbor and had him come take a look. He was busy at the time and so a couple of hours later we ran the "eater" through his duct which exited through the roof. Needless to say we were both amazed at how much had accumulated in his duct.

This is probably the best purchase I have made in a while and I am ever thankful for finding it and making the purchase.