She's every bit as good as the real thing. By which I mean India went back to using AKs shortly after.

She has a very weird and complicated set of skill interactions for a role that really just wants good, consistent dakka. Has a funny combo skill with M82 (the bullpup AR, not the RF). In terms of performance she's actually not awful, but she doesn't stand out, and there are enough good ARs to use other than her.

Suffers from there being a more famous, better M82, also with pink hair.

This one is basically interchangeable with Tavor, who by now isn't nearly as useful because you should be drowning in high-end ARs. If you are not drowning in high-end ARs for some unfathomable reason, well, she isn't the worst thing ever.

Also has a combo skill with AK Alfa if you do the side story stuff, but AK Alfa isn't exactly wowing the charts either.

She's a generic login AR. No one cares.

Ok, so she isn't actually bad. She does, however, have a stupidly long skill like a JK cramming for an entrance exam, most of which is largely irrelevant because all you care about is her damage output.

Which I guess is kind of alright.

Her skill has a good initial cooldown, and she's actually better than most ARs, but she won't usurp the position of the top ARs. A good pick for your B-team.

The Steyr ACR is the gun the Pallet Rifles in EVA are based off of, and this one is about as useful. On one hand, it seems like she'd be good for para fairy and its debuffs (you get +25% final damage with that), except it isn't enough to make up for the debuffs still. It's also not very easy to get debuffed. Evaluation may change based on future enemies, but really it's not worth it when you have so many good ARs to choose from.

No, she's not a video tape. One of her skins shows her recent arrival in the US has apparently given her quite the dump truck ass. Must be all the McDonalds. Her skill powers her up with extra stats relative to the enemies she's fighting, meaning she has basically no real use vs. mooks. Potentially handy vs. bosses, but being a RoF-focused AR, she suffers from chips existing.

Why does she have Shark teeth? Dammit Imoookoooo

Despite the teeth, she's somehow the nice HK girl. And somehow, she's the smart one. Look, HK is weird ok?

Anyway, she packs as much as 84% damage increase with her skill going at full power, but you're more likely to get a 76% boost in a typical RF/HG formation. Still, she's not bad. In practice she's slightly worse than R93 in most cases, but not usually enough to matter.

Note her buff tiles are funny and affect everything, so this makes her secondary ability a little easier to use. That said, she does NOT give HGs the usual cooldown boost most other RFs do.

She looks like a discount STAR-chan, although it's hard to describe anything that uses a stupidly expensive round like the 5.7 as a discount anything. She has a three second long cooldown and the skill lasts for two seconds. Her big thing is that she can also buff SMGs. She can be used either a mild firepower buff or an actually not awful evasion buff, the downside of which being that getting her evasion buff to work requires moving your dolls around.