I brought one second hand a few years ago. For the weekend trips that we do we didn't have any real use for the freezer. And having it set at a good temp for food/drinks in the fridge side, anything in the freezer would well and truly freeze. Never had any issue with 'warm spots' in the fridge.
I have heard of people adding a 12 volt fan (from a computer) mounted into the divider to give some air circulation, but from memory it was more for less differential between fridge and freezer, not so much because of one end of the fridge side warmer than the other.
Because we really didn't need the freezer and the fact that evakool are only 30 mins away from me, I put it in and got it modified so it is now either all fridge or all freezer, it has 2 baskets no divider and the element covers 3 walls of the fridge. Cooling is even and consistent. Haven't used it as a freezer but with the thermostat dial at 2.5 the temp sits at -1 degree. Which is perfect for chilled drinks.
Would I buy another one? Absolutely.
Mark.