Product review (5 stars): Finally a product that does exactly what it says it will do.
So easy. Works as advertised. Now I can run the dryer in my old house without worrying about burning the place down.

WARNING: You may discover some unpleasant things in the duct work. A large piece got stuck in my shop vac hose. After turning it off and inspecting I realized it was not a chunk of lint, rather it was a dead bat covered in lint. Had the bat been alive, I may not be here to leave this review.