For once, an SMG that does something different. Her skill at max reduces her damage taken per hit by 15, except since it ISNT armour, it cannot be penetrated by armour-ignoring effects (like explosions) or enemy AP. So, massive multi-hit effects kinda just get shrugged off. Also, unlike shotguns, as an SMG she can dodge, so you don't mind taking ticks of 5 damage here and there.

What makes her useful while shield SMGs exist is mainly the much faster ICD.