TL;DR - I love the turn-based system on the whole and would choose to start PoE III in turn-based mode if it comes with that option.
I hope the devs will take some time to have some fun with exploiting the new options in terms of counter-play by making combat at the higher difficulties more punishing not by simply inflating numbers, but requiring the proper response to certain actions (interrupts, movement, prioritizing the right targets)
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Intro:
When I first played PoE II I felt its combat (and combat balance) was it absolute weakest point. On PotD I mowed through enemies,