Product review (5 stars): worked well
Cleaned my dryer vent out and my drying times have improved noticeably.  Easy to use,  I used it from the inside since my dryer vents to the roof and I didn't want to go up there.  It worked very well and I was able to clean out 5 years worth of built up lint in under an hour.  The extra dryer cleaning brush is a nice bonus and is better quality than the cheap ones you find at the hardware store.  This kit is a must have for any homeowner.