I've just been thru the same exercise as you. I went to a store the other day to buy a Waeco CF-60 Adventure Package. I walked out with an Evakool 85 litre fridge freezer.
The Engels seemed like a good fridge, but were fairly pricey. When I compared the same size Engel & Evakool, there were hundreds of dollars in difference. And, from what I read and was told, the Evakool seemed to be a pretty good product (they are great eskies, so imagine one with a big fridge motor on the side).
The Waeco's seem to be good value for money, but when I looked into construction, insulation, temperature retainment, toughness etc, I steered away from them. I'm definitely not saying they are a bad fridge, but am just saying the Evakool seemed to suit me/my camping needs better.
In the end, you probably can't go wrong with the Engel, but "horses for courses" and $$$ might be the weighing factors.
Just make sure you know which accessories each one comes with i.e. if it is only a 12 volt fridge, you will need a transformer to cool it down at home on 240v before leaving. These can be $100 or more.