Product review (5 stars): Very satisfied.
This worked really well. I detached my dryer vent pipe in my attic from the thing that releases lint from the roof and taped a garbage bag on the end of it. I used this downstairs with a vacuum hose right next to me. I used all the extensions and connected them to my drill. I shoved it all the way up into the attic until I felt less resistance. I went into the attic to see if it truly came out the other end. It did, so I went back downstairs and pulled it back in a little bit. I started my drill and slowly pulled it down. Had someone hold the drill and walk out of the utility room and into the garage while I held the vacuum. They backed away until it came out. I put it back in, and we brushed it all the way back into the attic again. It did a great job. Very satisfied with this product.