From what I understand, for pure all-out unadulterated chopping power, the Steel Heart and Battle Mistress outperform the Paul's Axe. However, for smaller utility chopping, such as general camp chores that one often grabs a knife and starts chopping, it would be great. My brother has a small Gerber axe that he uses for making additional tent or tie-down pegs, fuzz sticks, and garden chores, and I'd imagine the PA would be great for that kind of use. Another advantage could be found in preparing large game, scraping hides for tanning, or as a draw-knife where the smaller edge would offer more precise control.
On the other hand, I have an Assault Shaker, and it's amazingly robust for its size. It's solid, sharp, and not large and unwieldly. It works so well that it's easy to get caught up using it for chores that often require more handle area to control. I used to beat up my Sebenza with all sorts of work activity, but I've switched to the AS for beater use. Don't get me wrong, I still EDC the `benza each and every day, all day. I'm less concerned with dropping the AS, or getting it dirty, gritty, muddy and grimey. The Sebenza I'd be concerned with getting it cleaned up. The AS, I run it under water and shake it off. Done.