Product review (5 stars): It got a huge pile of lint out!
I used a drill and a leaf blower with this product to get a huge pile of lint out of the vent!

It is VERY IMPORTANT to vacuum or blow out the lint properly from the vent. At first I didn't use the vacuum adapter to blow the lint out. I later discovered that this product somehow couldn't clear a lint clog at a tight corner of my vent. It was only until I used the vacuum adapter that the airflow was strong enough for my leaf blower to completely clear the clog.