Her 4 star rarity is a lie. She's rarer than most of the 5 stars and is surprisingly good for her rarity. MAID POWER. While she performs alright as a 4 star, her mod makes her potentially quite good if you don't mind the expense.

Does not overheat, unlike the real one. Also Imoko art.

Technically has a combo thingy with Springfield, but it falls under "I guess it exists?" Yeah, I dunno what they were thinking.

AKA ST AR-15, aka Star-chan. High stats, two accessory slots, and Unique Ammo (that you need to farm for) that outperforms regular HV ammo and doesn't require forever to build up. While not considered as OP as she once was, she remains a good unit to raise; if you partially raise her, she basically hits close to RoF cap on her own.

Her mod (and her equipment set) brings her back up to a decent spot as an AR. You can see her mod here

"Are you THAT short on ARs or need cheap equipment that badly?"

You get much better ARs from story events, and there's only so much that you actually need. If you need a cheap AR and already have FNC though I guess she can be useful.

Her exclusive, while it does give her more strength, doesn't let her outperform many 4* ARs.