Product review (5 stars): Works very well.  Here are a few tips.
There are lots of positive reviews on this product and I agree.  It's great.  So, I'll just point out a few things.

1.  It is designed to fit a shop vac.  My upright vacuum did not fit well.  Duct tape to the rescue.  Worked just fine after a little modification.
2.  Make sure the poles are very tight to each other and you spin your drill in the right direction.
3.  Hold your drill with two hands because if it gets caught it will torque your wrists.
4.  Watch for reaching the end of the line to the outside of your house.  You don't want to break off your exit flaps.