Product review (5 stars): Worked as Described...can ask for anything better.
Purchased the LintEater and the&nbsp;<a data-hook="product-link-linked" class="a-link-normal" href="/Gardus-12Ft-Extension-Kit-For-Linteater-R/dp/B00R1X7J9O/ref=cm_cr_arp_d_rvw_txt?ie=UTF8">Gardus 12Ft Extension Kit For Linteater(R)</a>&nbsp;to clean about 20 feet of dryer duct. Used the method of cleaning from inside (behind the dryer). Went to the outside wall vent and proped open. Then using the supplied vacuum adapter and self-feeding 4" Auger Brush, and one extension piece at a time I put the brush all the way in and then slowly pulled it back towards teh vacuum adapter which was hooked up to a Rigid Shop Vac. This method took some time but I feel as though doing this process will get everything out. When I reached the outside vent I then pulled the Auger back in the reverse motion remove the extension pieces one at a time inside. When  completed (about 1 hour), I think cleaned the dryer using the other brush supplied.

The end result was that it was very clean. When first turning on the dryer a few pieces of lint came out but not a lot. Drying time is much improved.