Product review (4 stars): Great concept but a little flimsy
This vent is a great concept but it's a little flimsy.  My dryer sits tightly between a built in cabinet and a wall.  The only way to access the vent is from the top.  It took us about 15 tries to get the vents to mate.  In the mean time the vent got pretty banged up.  In the end we put aluminum tape on every seam because they had all opened up.  It only gave me 1 extra inch of clearance but that is all I needed to close my laundry room door!