Product review (5 stars): Just saved 145 dollars by switching to Gardus!
I tried cleaning my vent with a long duster that i had around the house.  It obviously did no good.  Dryer wasn't heating up so I assumed the dryer was bad, until I bought a new one and we had the same problem.  Ten minutes after receiving this product dryer vent was clean and clear and our dryer was working like a charm.  Mr Duct offered to do the same service for $175.  Highly recommend this product to anyone!