Is Selene all that?

[Ballooooon]

Ya that's why I use eos. I'd rather play it safe than get a minuscule decrease in how long a fight takes. No matter how overkill eos may be it still has a chance of being very useful whereas selene will always be underwhelming unless you really need the aoe esuna.

Edit: I guess selene could be amazing if the boss is enraging and a few seconds would've made a difference.