The charge system is horendous. Thats probably true in every tree.
The single target Damage for FoTW is dramatically lower.
The lack of access to meld and dire charge greatly reduce survivability.
The animations are awkward.
The primal charge display is annoying and distracting.
Charges accumulate too slowly and disappeared too fast to be useful. When I did a Bruntsmash test the charges I built up killing the trash disappeared before I could get through the menus to start the Bruntsmash fight.
The lack of unbridled and the reduced damage from adrenaline made the Bruntsmash test take 3 or 4 times longer than on Khyber today.
I expected the charge system to be awkward and annoying but it is worse than my very low expectations. And the damage is not in any way comparable to the current ED Fury with twists.