Product review (4 stars): I like it very much.
Four stars because my wife thinks it is a bit ugly.  To me however, not to feel the cold air rushing into our mud room....10 stars!  This vent is the coolest thing since sliced bread.  I would recommend you have some do it yourselfer skills before tackling this install however.  I am not sure why Heartland is ok with an unsealed joint between the duct work and vent.  I threw an ample amount of caulk into this junction to prevent hot moist air from working back inside my wall/ insulation.  Reference: Mold LOVES hot, moist, and dark.  I have not painted it yet.  I can see that some care will be needed to do paint this vent correctly but that should not be a problem if I think before I do...wish me luck :)