Saw the midnight showing last night.
Like the first one, it was a fun, enjoyable movie. They went a little overboard in the fanservice, though. Some of it was ok, like Section 31 and what I presume was Praxis (I really liked that touch). It was the parts that seemed more like direct copies (or even rip-offs) than homages or references that bugged me, particularly the radiation scene. But when Spock did his "KHAAAANNN!" I literally groaned. It was just ridiculous, and I couldn't take it the least bit seriously.
But don't get me wrong, I enjoyed it. It was a fun summer blockbuster movie. I just wish JJ and his bunch could have come up with something more original instead of rehashing an old villain, and lifting scenes straight from previous Trek.