Product review (5 stars): Seems like it would've been great
I imagine this would have worked wonders if I actually had lint blocking the vent pipe. Super easy to use, straight forward and the included vacuum attachment with reducer means you can use either size shop vac hose. I'm sure this will come in handy for gutters too, or whatever else so happy to have it in the tool chest so to speak.  As it turns out the blockage was on the outside vent grate, and this was near impossible to access from outside the house (but not relevant to this product and a story for some other time)