Product review (5 stars): Back to one cycle!!!
Works great!!!
 My dryer was taking 2 to 3 cycles to dry my clothes. Use this and the extension because the run from my dryer it's outside my house is incredibly long and it got all sorts of nasty lint and hair out! Before using it I didn't see any errors or steam coming out of my dryer vent outside, now  it is pumping clouds out!
I also tried the less expensive kit but the brush doesn't have the auger design to it so it didn't work. By this kit instead!
Buy the extension kit, you'll be happy you did!