If you know what you're going into, you'll probably have a good time. It's explosions, it's Megan Fox, it's CGI, it's story-is-secondary -- or more like tertiary.
It certain doesn't deserve the hate from the professional critics. It isn't Shakespeare or Scorsese. It's Michael Bay and on that scale, I'd say it is as good as the first movie. It isn't Bad Boys 2 bad, it isn't fire-in-spare Armageddon bad. Quit taking this tent pole series so seriously and have a good time. Three stars.