Just watched it, thought it was pretty bad. The only things going for it were that the mechs and monsters looked impressive.
Couldn't really give a shit about any of the characters and I can't remember the last time the climax of a film elicited so little emotional reaction. I expected more mindless action and less focus on the story and poorly developed characters. Flashback scene involving Mako was especially bad. Action wasn't great either, the sequences were overlong and rather samey, not helped by the fact that it was always dark and often surrounded by waves, thus serving to obscure vision. Sound was overbearing as well.
Also, this is a rather personal issue and not directly a criticism of the movie but I am getting really, really sick of the White male-Asian female pairing.
wow, you must be a really fun person