We have them in storage.
Out in the sticks the electric goes off quite frequently, so most folks have an ice chest or two on hand for emergencies, fishing trips, to transport cold things home from town(20 mi. away), camping and for family get togethers. You know me...I jump in with both feet and then see if I can swim when it comes to experimenting on things. So far, I've found that fat girls float rather nicely.
The one I'm using has wheels on it and an extendable handle for ease of moving it with heavy items in it..not that I plan on moving it, but that's the one I chose for the coop. I've been using it for a few weeks now and temps have been below freezing for several nights hand running during that time and
no freezing at all in the chest.