Product review (5 stars): Works great! Followed the instructions and used a leaf blower ...
Works great!  Followed the instructions and used a leaf blower to push out all the lint to the outside.  I did have to buy the extra extension pieces since I've got about 20' of dryer duct to the outside(which added to the cost).  However this kit + the extension is still cheaper than getting a professional to do it (about 85.00).  Took me an hour from start to finish including cleanup.  Dryer works faster and more efficiently.  Wonderful product.