It being a turb based combat game actually turns me off. I am a 100% turn based with pause kind of bloke, BG had the right idea. I'm going to give it a wait, see how it plays before I even consider buying it.
BG featured a "real time with pause" battle system, which is something I honestly strongly dislike.
All combat scenarios end up being a mess, you find yourself hitting the space bar every two seconds in order to keep up with what is happening on the screen and yet, you still have nowhere near the same amount of possibilities a properly designed turn based system would offer.
What possibilities are missing in this system?
In Baldur's Gate you could for example pause, tell your mage to cast a fireball at the enemies and tell everyone else to take a hike to not get blasted. This is not possible in turn-based. In turn-based, however, once you've moved for example, you've moved until it's your turn again. So to me it seems like it's simply a different set of tactics that you can employ, not that something is missing from the other system. You have to consider different things, such as movement, maybe more thoroughly, since you cannot just change your position at will.
Similar to action point -based turn-based combat versus action-based turn-based combat. There are different tactics you can use and different tactics that are effective.
As for Original Sin, I'm glad they're doing turn-based with action points. I'm also glad the talents and traits goal was reached. Would be nice to reach companions too, but...