No it's not. Unless you can lb her, she will be thrown away for the first event eidolon you'll meet. Her triple elem buff doesn't justify her use in any way. It is bad, can be replaced by a SR or a R while waiting for an event eido.
The only fight where her summon skill is actually worth it is Medusa. And as a support, not as a main or sub.
So no. Aim for a 100% eido, or at least 2 core SSR kami, but everything included with that is pure bonus. R, SR, weapons and behemoth.
On a side note, Anzu and disaster SR aren't worth keeping either.
Union event