Product review (5 stars): Fantastic product!
I was blown away by this product.  When we moved into my new house, the dryer almost didn't dry at all.  Now it works like new.  I could not believe how much lint was stuck in the vent and in the dryer behind the trap.

This product is easy to use.  I learned during the process the original builder used a curious number of 90 degree turns.  For me, I needed to go one extender at a time to navigate them, so i connected them as I went.  It was well worth the effort.