Product review (5 stars): Better than I could have hoped for
My dryer does not sit against an exterior wall, so I have two 90 degree angles to content with, as it goes up and over in order to vent out.  My dryer really was having a hard time drying so I thought I'd give this a shot.  So glad I did!  Absolutely ASTOUNDED by the amount of lint it pulled out of the duct.  I've raved so much about this product, that friends and family members have asked to borrow it.  The price of this product is so much less than what I would have to pay for my insurance deductible had there been a wall fire due to the lint build up; a really good, SAFE investment.