I just saw it today. I thought it was really good. Brandon Routh did a very good job with the character. I think, of all things, that his voice is what sold it for me. He did a good job with both characters though, Superman and Clark Kent, not as good As Christopher Reeve, but who could.
I didn't like the new suit though. I know it's a silly thing to have bother you, but it did. It looked plastic to me, I didn't like the S, and the red of the cape, boots, and undies was off to me. Of course this is not something that ruins the movie, just an observation.
Also, it was funny to see Cyclops in it! I didn't recognize him at first with his eyes not covered up. I think he's going to be in trouble with Marvel for crossing over to do a DC Comics movie!:1orglaugh