Product review (5 stars): This product "rocks" and is better than you would expect.  HIghly recommended
This product excels and does more than you would expect.  Cleaned out the entire length of the dryer vent.  Removed the accumulated lint and the dryer was performing as expected.  Fortunately my dryer has a safety thermal switch and would operate briefly and would shut off due to the heat it was unable to exhaust due to the clogged vent line.  The LintEater did the trick and now my dryer is operating fully without any shut down.