Product review (5 stars): Works great!
After 4 years in the house we noticed that the dryer was not working that well.  We had to run loads of towels multiple times to get them dry. I purchased this item along with the 12' extension kit as my vent is about 24 feet long.  This Saturday it took me about 20 minutes to clean the vent out myself.  Needless to say the dryer is performing just like new again.  Saved money doing it myself and on the electric bill.  The local contractors would charge me $150 to clean out my dryer vent.  Now that I have this kit, I plan on just cleaning out the vent each spring and fall.