Product review (5 stars): I am so glad I bought this
A well written Owner's manual is just the start. This is one of those tools that after using it, I said to myself "Self, I am so glad I bought this!". High quality top to bottom, Easy to  use if you follow the directions. I took a 3-foot piece of lint encrusted venting off and ran the brushes through with my drill, and then looked through the tube.  It was darn near as clean as new! I highly recommend this product.