This show answers that question with amazing detail. Carter seems to act as psychotically to the benefit of others as House does. We'll have to wait and see what the other personalities hold, but that was the one that jumped out and grabbed me.
The other What if question that Dark Blue asnswers is "What if the Leverage team thought they were the good guys?" That is the one aspect that got to me. They all claim to be the good guys, but they don't act like nights in shining armor. I'll have to wait and watch it play out. It seems to be rolling along well though.
Obviously this is meant to be a heavy drama. I certainly couldn't stomach a marathon of it yet. I don't even know if I could last through a full length movie. However, it's excellently well done. I intend to watch more of it.