I've not seen the original and hadn't read anything about the plot, so I went in totally blind. And there were TWO plot twists that caught me totally off-guard. I WAS IMPRESSED.
And Jensen did a REALLY good job with his character, Tom. I would have liked more back-story on him, but that's a writing error, not an actor error. Tom is very, very different from Dean, and Jensen did an awesome job being someone different. (I never thought "DEAN" while watching.)
Also, he looks tall and gorgeous and powerful and strong and RAWR in every scene. Yum. AND. For the majority of the movie he's wearing a hoodie, with the hood pulled out over his coat, which is my FAVORITE. I have such a secret kink for that look. MMMMMMM.
I mostly consider 3-D to be a gimmick and it didn't really add anything SPECTACULAR to the plot, imo. (Though, once, gore flies straight at the screen and I, uhm, maybe screamed outloud a little. And failed in my seat a bit. SO EMBARRASSING.)
In conclusion: I'd watch it again. YAY JENSEN.
Once you've seen it, come tell me your thoughts! Let's DISCUSS.