I haven't had a chance to see how healers work, and couldn't find much info online except spell descriptions and animations (no info on cooldowns etc).
Short version: I want to know if healers will work like spammy-heal-bots (like WoW) or if healing spells will be more situational like in D&D.
Long version: I loved playing WoW (while it was good) but it always bothered me a bit when healers just spam spells without end like some weird holy-machine-gun. It feels like the tank losing an Arm on each attack and being stitched up by spells over and over

When someone is healed by a spell, I would like it to be a "wow thanks you saved me" situation, instead of the weird approach of "why aren't you spamming heals on me every second?"
My ideal game would be one where spell casters wait for the right moment to cast a spell instead of spamming it over and over.
How is healing working right now? How are cooldowns and what should I expect?