Product review (4 stars): Good, not great.  Not sure its worth the money
I like it, I don't love it.  I should have been more careful about reading the dimensions because if you have any type of siding on your house, it will not sit flush on one row of siding and it will take some doing to get it work.  We have a very drafty laundry room so hard to say if it is creating a good seal.  We mostly got it because birds kept making our dryer vent their home.  Also if you read reviews and installation instructions, they all say this item is not protected until it is painted.  We don't have the paint for the house since we just moved in so its just white, maybe it will crack in the summer heat this year.