Product review (5 stars): Works as described
Our relatively new samsung dryer has increased the drying time since we moved into a house that vents up through the attic to the roof.  This always concerns me for obvious reasons.  It was super efficient in our last home that vented directly to an exterior wall vent.  When I realized a load of towels took 3.5 hours to dry, I ordered this instead of calling a repairman.  Sure enough, we pulled out a bunch of lint, not as much as some other reviewers, but we did have one main clog where our hose makes a bend.  I'm hoping for a major increase in efficiency.  I was also able to use the smaller brush to get into the filter housing and clean that thoroughly. Good product, works as described.