Pine is Kirk.
But Shatner is Kirk too.
I think we've now reaching the point where we can regard Kirk in the same light as James Bond with people might be able to identify more with the character than the actor who plays him.
That being said, I think Pine did a great job in capturing the essence of Kirk. Pine's Kirk grew up differently than Shatner's Kirk--which was an ambitious overachiever from the start, IMO--and became a "bad boy" much earlier in life than he did originally.
Free your mind, and the rest will follow.