We find it difficult to maintain a consistent temperature in the freezer because the freezer door flops open very easily, and freezer items try to slide out. I recently bought some of these Camco cabinet bars and applied one to the freezer door - - it works well at keeping the door shut, and the freezer stays colder.
Also, we've found that objects slide around on the shelves and bump the thermostat. In order to stop this, I got one of these to make a little 'wall' around the thermostat. A piece of feedback I'd have for the fridge manufacturer is that the thermostat turns too easily for a bump-prone vehicle.
We cook all of our own meals when we're on the road, so we always have a loaded fridge. We wish the refrigerator were larger (and less noisy), and we may attempt to improve that at some point.
We got a thermometer that has a remote sensor so we can always see how the fridge is doing while we bang around in 100 degrees. The sensor in this picture is the little white box on the 2nd shelf. It reports its data back to the main unit in my hand, and we keep the main unit up by us in the cockpit.
We noticed that this fridge is happier and more efficient if we don’t pile much stuff near its thermostat in the upper left corner — it needs air circulating past it. In fact, there is often a 8 - 12 degree difference between the area near the door and the back of the fridge near the thermostat. Based on feedback from the Revel Facebook group, we bought one of these, and think it's helpful. And while we were at it, we got some of these, too.
