I bought Cataclysm tonight, and me and another regular at my local game store decided to baby step through the new rotation a bit with a Head to Head match.
I played Chaos using some of the card from the new x-pac and he played Orks using basicly just the core set.
We drew the fulcrum that grants 2 dominance, but you loose one when you take it. I forget the name, but I think this one might not be good for a simple Head to Head. I won pretty handedly being able to maintain control of the Fulcrum for 4 rounds getting 2 dominance at the end of each round stage.
Other than that I really like the system, I am looking forward to playing a group match soon. The round rotation seems spot on for this kind of play, though I had expected maybe new capital boards or something really new.