The door monitor mostly helps when a kid walks off leaving it open thinking they closed it.

The freezer temperature monitoring has saved the contents several times. A breaker had tripped once and I didn’t notice, it let me know that I needed a generator during a power outage, and one of the kids snuck an ice cream and left the lid wide open.

So yeah, it’s been useful. It’s not needed 99% of the time.

Nothing needs to be, but I do like to monitor door status and temperature for my fridge and deep freezers with home assistant.