She's basically a 5-star hybrid-type SMG, except she's not exceptional at either role she can do. She's meant to be a sub-tank, where she does not really excel. She's fine for generic use, but not great for high-end stuff.

High end MG with good damage potential. Chance to fire an extra shot with every shot, and that has extra damage and can crit (it's not an autocrit, but can crit, see notes). At lvl10, it's actually very steady. With her unique gear, DPS is still extremely high vs single targets. However now we have bullshit MGs like Kord and the like, and being able to murder multiple enemies per shot is the current hotness for mobclear.