Product review (5 stars): It was easy to use and having a single story home
I was so excited to receive this product and use it that I started opening the package and getting the drill out at about 11 pm.  It was easy to use and having a single story home; the flexible line segments length of 12 ft seemed to touch the top of the vent which is on the from inside.  I could not believe how much lint was inside the back end of my dryer but inside the pipe run for the dryer vent.  Not only do I feel safer knowing I minimized a fire hazard, I am excited about the less drying time for cloths.

Please keep in mind that the manual version as opposed to the drill is not easier.  Go with the drill option