The original did well be using simple graphics, clean lines that were almost cartoon-like. This version is incredibly detailed, and as a result it loses so much impact as to be a much weaker film. I can't fault the effects, some of which were extremely clever, but because there is so much detail it stops becoming immersive, which is a real shame. The big, wide shots are too big and wide.
And there's a distinct feeling that they picked up a bunch of ex-Matrix programmers.
The next 'must-see' film is probably 'Voyage of the dawn treader', also in 3D. I understand the story has been changed substantially, which in this case may not be a bad thing at all.