I'm fairly non-plussed about this--but his voice is grand. Truthfully, I'm disappointed that they didn't land Javier Bardem for the role for the sheer star power he would've brought to the film. Also...I don't understand why we're even doing this again? They really should've saved this retread for a future film considering we already covered the Galactus storyline in 2007 (yes, it was horrible, but still.... it's rather fresh in people's minds to an extent--"last seen, first remembered,", etc.,).
Annihilus would've been a much better villain for this first movie--in my humble opinion. A galactic threat of a different sort, and something we haven't seen on the silver screen yet.