Product review (5 stars): Great tool
I am very pleased.  Tool is well made and well designed.  It performed exactly as advertized.  I bought the extension kit too (needed 22 ft.).  Our dryer vent had become coated with lint.  I estimate 20% reduction in air flow.  It required a second partial cycle to get clothes dry.  I cleaned out every bit of lint I could find.  And now the 12 year old dryer performs like the day it was new.