Arsenal still feels like it self.
The way you have designed the trees with first a main ability and a mod for it is a nice way to customize things a bit i feel, and i am ok with having to make some of the higher lvl choices.
However i do feel that every class should have certain abilitys and one of them is a hard stun, this should not have to be a choice.
I have also seen some classes have their big raid utility as a option in the trees which i feel is very odd