Product review (4 stars): QUICKER & LESS BOTHER
I am sure this works.  Alternatively,  Here is something that I did:  I got my 200+ mph leaf blower & attached a downspout to 4" round adapter & used foam to seal any gaps. Held to the dryer vent  wall fitting. My wife observe from outside a cloud of lint debris. It took much less time than the kit & saved the $35 +.