Product review (3 stars): Need to install the magnets correctly.
It functions well, but was not easy to install on my particular older model freezer.  Main problem is that that the manufacturer does not tell you that the magnets  only function when the correct side is facing out.  The magnets do not work if facing the wrong way.  As a result, I had to turn some of the magnets over after partial disassembly of the initial installation.