I loved the addition of Astrologian, i actually prefer Astrologian how it used to be, it felt more technical, now it feels a bit easy and like you're healing on auto pilot. The MP management in the beginning really made you think about how to careful use your heals.

I loved the additions to Scholar and White Mage.

Overall i loved healing in HW.

Probably one of the highlights was the Vault, it was the first dungeon that felt like it was designed to test healers to their limits, of course its a cake walk now but back then it was tough.