Ya if it doesn't miss and you have enough rage built up to do damage to them. But if all works well it is pretty good I have done over 600 points of damage at level 32 with it.
I have seen it be most useful when fighting a mobs that runs away when it gets low on health (humanoids, plainstriders, etc.). Just hit whatever key you have execute bound to and poof no worries about them running and getting all their buddies mad at you.