Product review (4 stars): Works great but be careful!
I used this today, going in from the roof.

Pros:
* Works great to clean out lint - almost "fun" to use and see the lint come out
* Comes with a short & helpful DVD (English & French)
* I almost gave it 5 stars but because of the cons I think 4 stars is more appropriate

Cons:
* *** BE CAREFUL *** Have to be careful not to purposely or *accidentally* put the drill into reverse or the brush head will detach/unscrew
* *** BE CAREFUL *** Set your drill clutch to no more than half of the maximum setting or the rods may break from too much torque
* I wonder about the possibility of a rod breaking or brush unscrewing... I wonder how tough this thing is... it seems decent, but I would be more confident if it seemed very well built instead of just "decent".

Other:
* See the photos I uploaded. I was surprised how much lint came out.
* My 3-year-old enjoyed watching the DVD over and over!
* I went in from the exhaust on the roof and had the dryer blowing cool air out