Too Useful to turn Off...
I have an Engel 27 in my Jeep JKU... when I'm "out there". The rest of the time it sits in my home office, comfortably living the high-life as a wine fridge ;-) Set it on minimum cooling, perfect for whites and rose'.
When it is time for the little bugger to go back to work, the Jeep is ready, with a permanently installed fridge rack with a quick-release, what Engel calls a Transit Slide-Lock. It is in (or out) in moments. Very easy.