I am having some drywall work done in my basement, and Sense alerted me that my chest freezer had not run for a couple hours. I went downstairs to check it out, and I found that the contractors had unplugged the chest freezer, presumably to access the wall behind it, and had never plugged it back in. All of my stuff was frosty, but
everything was still solid.
I would never have thought to check that the freezer was unplugged without the alert from Sense.