I'm not very interested so far. The problem with her is that she revolves around Oden as a character, but doesn't have a real relationship with the man. Like, her relationship with Oden is like Barty's relation with Luffy- it's just fanboyism, there's no deep relation there. Luffy and the Strawhats have a real relationship, Oden and the Scabbards have a real relationship. Yamato and Barty are a sideshow to that.
And the difference being, Bartolomeo is really funny and Yamato isn't.
But I'm not going to fully write her off until we get her inevitable flashback, where we see what her relationship with Kaido and Ace was like. Hopefully that will bring something more to the character than "ohmygod Oden was so amazing."