Product review (5 stars): Does the job!
I have a brand new dryer that all of the sudden stopped drying my clothes.  A repairman told me the problem was my vent, so I ordered on of these, and sent my husband to work. He found the product very helpful, and appreciated the "Bird's nest remover" - there really was a bird's nest in there! So after the bird's nest was removed, we cleaned the vent with the rotary system, and now my dryer works like a charm! This is great for the money - way cheaper than hiring someone to do it for you.  Very pleased.