She is good, Probably solid mid-tier. But she doenst have any viable reversal, so you constantly have to make the right read to get up. And her overhead is really slow and you can grab it on startup, that combined with a single low hitting move (cr.lk) which you cant hit-confirm of unless its a counterhit. And she cant crossup for shit due to the wierd hitbox of j.mk.
These weaknesses makes some matchups superhard. Thus mid-tier from my point of view :)
After makoto MK axekick she gets free ultra, so there is nothing wrong with mashing an ultra there if she messes up the execution.