My bias is that I enjoy playing old isometric games. The story is fun with it's own charm. Much of the same mechanics from the previous game are in this one too. I would only recommend playing this one if you really enjoyed Divine Divinity and want to see the continuation of the story.
I just completed the game and enjoyed most of it, but the cursed AI was definitely still broken for my playthrough. The final battle took me forever to complete because the AI has perfect aim and can see through solid objects from across the map.