Product review (5 stars): Couldn't be happier
We moved into a 20 year old house about 3 years ago and quickly learned that the dryer vent was clogged. We tried many different ways to clean the vent (it's 15 feet long with 2 90 degree turns) including running the leaf blower and thought we had it pretty clean. Problem was that we had to keep cleaning it out every month. We found the Gardus Lint Eater on Amazon and I was pretty skeptical so I read all the reviews which lead me to buy it. We read the directions carefully as most of the reviews say to do, I was particularly worried that I would lose the parts somewhere in the middle of the vent to be lost forever and then clogging the vent even more.
 So we set out to clean the vent last Saturday and after getting only five feet in tons of lint started pouring out of the vent I shop vac'ed the lint up and kept going adding one rod at a time. After making the second 90 degree turn (about 10 feet in) it got hard to push but kept on until the brush popped out the other side of the vent. Pulled everything back the way it went in and more lint fell out of the vent. Used the shop vac to get that as well and then for good measure ran the leaf blower through the vent and more dust and lint poured out the opposite end.
 Ran the dryer when we finished and my wife swears it takes less than half the drying time as it did the last 3 years! Couldn't be happier, as the Lint Eater will pay for itself in no time, considering that it will cut our dryer usage in half.