Your first line seems almost as if it's implying she replaces Sol or Amaterasu. Unless her atk down is c-frame, she doesn't. Though I wouldn't use Amaterasu in a thunder team to begin with since they're usually fighting water enemies.

Overall, she's pretty good considering she's an obtainable hime from a raid event. I don't know much about raid event himes we haven't gotten yet in the nutaku though.