It's a more stable version of Nhl05 with better AI
Goalies are also more spectacular in their saves. The "he's cheating, he couldn't have stopped that" of previous version is now replace with a last second glove / blocker sticking out or a quick pad. It's not harder to score on them, it's just that you see way better how the save was made.
No revolution here. It's barely an evolution. But, I'm a big hockey fan and I like it.