Product review (5 stars): Brilliant Product
I have one word for this product, Brilliant!  I used the Linteater with the 12' expansion kit to clean out my dryer vent.  I used the entire 24 feet.  It was easy as could be.  A lot of thought has gone into this product.  The vacuum adapter eliminated any mess.  One word of caution.  If you are cleaning out an inaccessible dryer vent line, take Linteater's advice and put a piece of duct tape on each joint so it cannot unscrew. I didn't do this, thinking that I wouldn't have any problem remembering to not reverse the drill.  To disconnect each section when I was removing it from the vent, I used the method of holding the next section and reversing the drill to unscrew it.  Old pea-brain forgot to reverse the drill back to clockwise direction and it unscrewed.  I can't say I wasn't warned, many times.  Fortunately, the last section unscrewed and I was able to re-thread it.  My vent line is accessible so it wouldn't have been a catastrophe if I had to take it apart.