Product review (5 stars): This thing is amazing. I have a two year old dryer that ...
This thing is amazing. I have a two year old dryer that started drying slowly, but my laundry room doesn't vent outside where I can clear the tube easily. I think it vents to the roof...but anyway, *I have three cats and a new house, so there's a lot of dust, fur, lint, etc.  This gadget was super easy to assemble, easy to use, and cleaned a massive amount of gunk out my rigid wall vent, the flexible venting from the dryer to the wall, and the inside of my dryer. I didn't use all the pieces, I used both brushes and the extenders only, but I checked with a flashlight and it seems to completely cleared all the vents. My dryer now works like new. The rotary action with my drill was impressively effective. I've used a "Lint Lizard" before, but without a brush you can't dislodge the lint from the walls of the tubing. Go gently on flexible venting so you don't rip it, but I went to town on my rigid vent and all kinds of crap fell out. Clean as a whistle. I was sceptical of the price, but it's worth it even for rare use. Very high quality pieces, good metal connectors, solid plastic in the brushes and the extenders, not cheap pieces at all. Would stand up to frequent use, no problem. I would definitely buy it again, I might even buy one for my mom.