Dark Urge is amazing, great job Larian.
I have played the game with regular Tav, Good Dark Urge and branched out of my good DU character at the beginning of act III to complete the game with evil DU.
And I have to say, good dark urge is, in my opinion, the absolute best and "canon" way to play the game, a perfect continuation of the original series.
I encourage everyone to give it a try, to get past that Alfira moment because there are LOTS of decisions and roleplay potential to the character.