It seems ... huge. Too huge. There's so much empty space in the middle there, it looks like it could take you five minutes to run from one side to the other. I know that it needs to be big to get from the street entrance to all the platforms, and that the temporary station reflects that, but it doesn't feel as large as this design looks.
As for the exterior, I think if the "spines" didn't go so much higher than the roof, it could look pretty good.
But then, I'm pretty utilitarian, and when you can get something simple (like the current station) I don't see the need to go with something extravagant like this.
Phil Gengler
Overheard in NY Penn: "All aboard! Get on the train if you're coming with us!"