Product review (5 stars): I was amazed how easy it was to clean the duct even ...
So satisfying. I was amazed how easy it was to clean the duct even through three  90 degree turns. It removed so much lint. I used to clean the duct by shoving the vacuum hose inside the duct thinking this was enough. I'm glad my wife decided to get this thing because there was so much lint left in the duct that anytime it could have caught fire.