I wouldn't discount Waeco too quickly. I haven't heard to many bad things about them and they are a lot cheaper. Engel in my mind are banking on brand loyalty and charging a whole heap for the privilage.
My father has a 60L Waeco and it chills your beer to artic temperatures pretty quick.
I personally have 2 engels, a 32L and a 40L in the older style, both bought 2nd hand. One serves as a fridge and the other a freezer. In true engel fashion, neither has missed a beat and they would be at least 10-15yrs old. One however is noisy as but bugger me if I can stop it. The new models have more plastic and more electronics so more to break and/or go wrong. But they are more quite and draw half as much amps as mine do.
At one stage, I would have been dead set against getting anything else but if I had to replace them then the difference in price might sway me.
btw, those two engels will be good for me and the misses for a 1-2weeks depending on where we are going.