Product review (5 stars): lint eater one hellacious tool
Just got this in yesterday, haven't got to use the cleaning system as of yet, but it looks like it will do a bang up job. product is exactly as advertised.

I live in an home built in the 40's, When they decided to put the washer and dryer in they put them in the center of the house. They put the vent in the wall at floor level put and 90ed it down and then immediately 90ed it to run half the width of the house (about 12 feet).The vent was plugged when I moved in the house, so I just put Pantie hose on the end of the hose. Last year I tried to clean it out with a homemade tool, I thought I had it clean and run the dryer through the summer (and burned up my dryer). When I hooked up my dryer this year It just pressured up. I tried and tried to clean it out with my home made equipment, but had only minimal success. I saw this tool on Amazon and grabbed it. I have used and abused this tool, I used it in ways that the instructions clearly state not to. I did do some damage to the tool (not beyond repair or usefulness). When the damage occurred I was clearly abusing the tool. I had brought out about a plastic grocery bag of trashy lint when the brush quit working. the lint had been wet and compressed to almost a cardboard consistency. I put the obstruction remover on and connected it to the drill (against manufactures instructions) I ran it until it hung up, removed it and run the brush again. I would get about three passes with the brush and start all over again. This tool removed all of the crap in that galvanised steel vent tube.

a few other tricks if you have a stubborn plug like mine. The instructions state that you should run in and out one rod at a time. If you try to pull this out with the drill running and without dismantling the rod you will have a twisted pretzel on your hands. This did not damage the rod though. also putting to much pressure on the rod will disfigure the rod. I did put a twist in one link of rod, however it did not slow down its performance. If you need to run the tool in and out do so without the drill, slide the tool in to the clog and run it turn the drill off and pull out by hand. This worked great for me. I also bent the obstruction remover, not beyond repair and it still took more abuse.

If you have a dryer vent that is plugged with regular old soft lint it would be no match for this tool. If used as recommended it should last for many years.

I would definitely recommend this tool to any one.