Right. Well I went in expecting to enjoy some good special effects and a basic popcorn flick, and that's pretty much what I got. What I didn't exactly expect was for it to be quite this crappy. Whereas with something like Transformers 1, you get some good laughs, crazy special effects and a decent story, in this you just get CHEESE. Characters belch out incredibly cliché lines like "Now you will die!" while fighting in random arctic underwater lairs, and it's all intercut with simplistic flashbacks to explain their roots. Then again, it's GI Joe, so I was expecting this.
Then you've got the effects, which are sometimes cool, but generally very uninspired (all the good shots are in the trailers), and the humor, which only comes from the black dude, who is incidentally the only good actor in the whole movie.
In a sentence:
Not even good as a summer action flick, unfortunately. You can get the whole experience just watching the trailers.