Product review (5 stars): Worked well
Bought this and the extension kit since I have a long duct that runs from the first floor through the attic. Was able to easily clean both the duct and dryer and drying time has been significantly reduced. Product was shipped quickly (amazon prime) with no problems.

Other comments:
- Extension kit was handy since I needed both the brush and the piece that cuts through heavy stuff. Was nice to not have to keep switching heads.
- The rods did NOT fit into my 3/8" drill. That was disappointing, but turns out I did not need to use the drill. Thought about reducing the rating because of it.
- I never used the vaccuum fittings, but I don't own a shop-vac. Didn't really need it

Overall though the product worked and was inexpensive compared to paying someone to do it. Plus I can easily keep it clean from now on. Drying time on something like a load of towels is much shorter. I hate to think about how much money on gas/electricity I've wasted.