Shame they made the potions in the game to be meh.. (let's not forget the super "Phoenix Down"!)

Vit, healing potions are useful when low on Cooldowns and healers are busy to.. hmm.. they should be able to combine with your skills so that you will survive.

Anyway.

I use Spine Drops and Antidote, for when the healers are lazy and don't know that Esuna or Leeches exist.

(Anyone can confirm if someone can use a Gold Needle on you if you are petrified to remove the condition?)

Potions are a little boost. I prefer to use my own MP and Stoneskin myself while waiting for a Cure to pop on me.