I would buy and Engel now if I was departing on a long trip. what I have--a 6 cu ft model
fridge is now working well after installing a new thermo sensor. It is dialed in at 39'degrees. I've bee living in my camper for two weeks now with water, and perhaps three weeks total, but using the bathroom in the house. I want to start showering in here next as I refine each system to suit me.
I do want a 15 quart Engel freezer. My former TV cabinet would hold it nicely if I remove the door for ventilation. And there is DC power in there. I could use in on my boat too. I've never had ice cream offshore. It would blow the minds of my crew.
A freezer is so important for keeping food long term. Lots of things can be frozen and that make food planning and portions easy to manage also.