You're really not. Story moves forward a bit but the gameplay is absolute balls.
What I saw from the gameplay it seems to be right up my alley.
I love fights where you have high mobility.
And I was talking about the story.
While I like DDD more than some others and really enjoyed it despite its flaws, I wouldn't say you are missing too much. There are a few cool worlds and it still has the fun combat from BBS (with Pokemon!) and then there's the somewhat unbalanced flowmotion acrobatics, but otherwise it is a bit rushed and a majority of the story happens during the last 2-3+ hours of the game. It's more important than ReCoded & Days, but I don't think it's nearly as important as ReChain of Memories or BBS.
The pokemon part is the one I don't care much (I take that's optional, like the command board in BBS?).
But even then, I have no idea what's in the story that I'm missing, I know the premise of the game and that's it.
It might be 2 or 3 hours of story, but I really don't want to miss it.
Oh well, if Square doesn't announce a DDD HD for PS4 I'll buy it and play on someone's 3DS.