I haven't seen or heard of the Mega Camps, but I've had a pair of Super Camps for 8 months or so. They are amazingly comfortable. The inner leather lining is very soft. Unfortunately they are a little heavy so long hilly treks can be tiring (might be my age).
I went for the Supers instaed of the Combats or Mountain boots as I was worried about the goretex lining causing overheating feet and rotting membranes.
Matt