Saw it yesterday, was honestly a little disappointed. I had hoped for slightly less awkward character interaction.. The final battle (the underseas one) was also pretty underwhelming, and I found it sort of weird how ridiculously full of stereotypes the film was, self aware or not. Pretty stupid how they discarded of the Russion and Chinese crew in a minute, to have all the spotlight on the 'merican dudes. I was also expecting the silly science dude to use his ability to "drift" with the Kaiju to control one.. That never happened, instead he did.. nothing? I honestly can't remember. Too much crazy science (yeah, let's blow up a 1+ megaton nuclear bomb a few hundred meters away from the main characters, and hope they make it). Thankfully, the film showed that it was self aware, and not taking itself too seriously, if not this would have been a disaster of a movie.
That said, it wasn't bad. The effects and battles were great, though I had expected slightly more from all the praise. I'm surprised of how big a part of the (long) movie was made up of CGi shots though, Del Tore must have used his budget well, because there was A LOT. Music was cool as well, though a not-too serious film like this could gladly have used some more licensed music to spice up the action.
Man of Steel still has this year's most spectacular visuals, imo.