
This Survival Instinct is absolutely awesome. Evade a whole bunch of enemies - and because it's Evade and not Disengage you might stand a chance of getting away from them - and move too!
In particular (Spoiler ahead) in The Devourer Below, it's a fantastic way of getting past the cultists from the Midnight Masks. Walk up, evade one of them - and you're home free, as they're not hunters. You still won't win, but by heck it helps.
Also, 2 icons - excellent.
I'm almost certain this will be an automatic choice for Agility based survivors. It's like Cunning Distraction, only affordable.