In short,
Her unique step (Jakeiho) is more evasive than the universal side step as it can not only evade highs and mids, but also tracking highs and mids. It has four options from it: low sweep, limbo stunning mid kick, launching mid punch, or into another Jakeiho for the same three options.
She can also perform it mid string while you’re guarding.
She has some of the fastest attacks in the game.
Has some amazing safe crushes.
Also her juggle damage is on the high end.
She has a guard break that guarantees a launcher and can be cancelled before hit into Jakeiho.
She has trip stunning un-reactable low attacks in string forcing you to guess.
She has throws that leave her in frame advantage and some leave the opponent back turned.
Probably her biggest weakness is her holds, but good luck stunning her or forcing her to hold as that requires you to set the pace over her.
if you want to look at the latest tier list matchup chart, check here.
But in short, here’s the current tier list (as of July):
S: Leifang, Christie, Ayane, Kasumi, Sarah
A: Jann Lee, Akira, Pai
B: ALPHA-152, Gen Fu, Mila, (Ryu) Hayabusa
C: Brad Wong, Helena, Hitomi, Hayate, Lisa, Bayman
D: Kokoro, Tina, Rig, Zack, Bass, Eliot