Similar to G41 in performance (actually slightly worse, but not significantly) and the artist just drawing their weird fetishes that land you in jail. She's basically a 5 star equivalent of Tavor sharing the primary weakness of taking 6s to startup instead of 4. The skill is good while active, but YMMV.

Honestly, the issue with any AR outside of the big mod ones, is that they just get gapped so hard unless they have a niche. ART556 does not. So you could use her, but....eh...?

Extra notes available.

She's basically LWMMG, except a 3 star and slightly more annoying to build up. She's like seriously, not even a performance benefit. Their stats are almost identical and they have the same number of shots so you... might as well just raise LWMMG.

Once you start considering mods, it does become a bit more interesting. Her mod gives her a good advantage towards the current (as of late 2023) meta set of enemies. So she can be worth raising for her mod.

Kind of fetishized and sort of jailbait, but she's still a very solid option if you have her special equipment. Outside of that, she's pretty mid. She used to be the standard ARs were judged by, but now she's pretty irrelevant.