DOS2 is great, you'll love it.
Getting used to the combat system, armor in particular, is the crux. If you have 3 party members who do physical damage and one who does magic, it'll result in opponents with no physical armor left, 5% HP but you unable to finish them off because your last guy will slam into the untouched magic defense. And then next round they'll cast fortify or something and give you the comeback.
Either go full one or the other, or 50/50 so party members can support each other.