The upside is, Athena is basically the best Hime in the game against Water. Unfortunately, she's not much good elsewhere, which doesn't exactly make her a newbie friendly Hime. Tyr is generally good, though nothing amazing until her rebalance which should be soon enough. Even then, that only applies to her Awakened form and it'll take you months to get the required materials for that.

The downside is, no 100% Eidolon means no good Friends. One of those gets you access to high level players from the start, which means that your support Eidolons would always be good.


Personally, I'd keep rerolling for a 100% Eidolon, but it is up to you.