Like GabrielMP, I played a lot of hours of this (Director's cut) but didn't finish it.
The game is basically a giant puzzle box, and is best seen as such.Whilst there is character development/skill tree etc, it is basically background to the puzzle box.
You start with the combat, which is very much a puzzle - you position your chars and their attack moves to damage regions on the battle "board" in such a way as to try and resolve the combat in a single swoop (if pos).
The puzzle then scales to the areas, which each have sub-puzzles that unlock a larger puzzle which then opens the way to the next area, which unlocks a larger chunk of the game and so on.
It's really nice to have so many puzzles in the game, but ultimately it felt less of an game world / RPG and more of a giant intricate lock.
For example, many areas have (fixed) battles which will be much higher level and effectively un-winnable until you have completed another area. Gradually teasing out the winnable battles allows progression, and the solution of another puzzle, which provides what you need to access the next bit, which gives you the strength to defeat.... etc. There's a touch of metroidvania, but it feels very mechanical.
The original games didn't feel quite so contrived, although I didn't play them much, preferring Might & Magic, if I'm honest.
Anyway, I *did* enjoy my time with the game, but then I like puzzle games. I'd like to go back and finish it, but probably never will as I find it difficult to re-engage with games after long breaks. Just don't expect a dungeon crawl in the typical sense.