Combat and game structure

Ok, i waited before buying and i am happy with my choice - game looked to be something i'd like but had/has some issues the devs are fixing over time, so i'm fine with playing it later on.

However i have questions for people who play it before deciding.

- game was clearly an MMO project that was changed later into a single player (devs told this later on aswell). while i'm not opposed to "checklists" (i find them relaxing) how well the systems got adapted to a single player experience?

- how is combat? more arpg/gear based or leaning towards soulslike? i really don't want an hard game (literal hand issues)

- i read about multiple playable characters? But i see only Kliff gameplay :)

thanks for who wants to answer.