About 30 hours into the game now. Finally beat Braccus Rex. The battle is incredibly hard conventionally, so I tried a little bit of trickery. I split my rogue off, ran in and triggered the conversation, while leaving my party outside the door. After he nailed my rogue with his meteor crap, I immediately teleported her back to safety outside, drawing all of them into the chokepoint at the door. Jahan threw an ice elemental right at the door while I sent my knight joined it to block off the exit.
After the Twins were dispatched, I waited until Braccus got through the door before teleporting the party further back again, giving my ranger and Jahan more time to spam range attacks at him. Then I turned my rogue invisible, and ran all the way back in to the end of the inner chamber. Before Braccus could get to my party I teleported them again, and stored up AP for everyone while waiting for the enemies to make their way within range again.
It wasn't all perfect, and things got sticky a few times because of Fear, Poison, Knockdown, etc, but I really liked how the game allows for tactical creativity to recover from bad situations. The balance feels pretty tight too. Enemies can do tons of damage and lots of evil status stuff to your party, but you can do the same as long as you're prepared and well equipped. There isn't much damage-grinding in battles unless there's a significant level difference.