Awesome visuals, lots of action, a tight pace, a great Damon and an even better Copley. It mixed spectacle, action and sociopolitical ideas. But even though the story is good and has some really interesting ideas in it, the script was full of holes and flaws. It was a missed opportunity to be a trully great movie. But it's still a good one, just nothing trully special.
Stangely enough i had about the same feelings with District 9. I had my issues with the script but they were much less than Elysium and its story was more interesting and original.
Still considering the quality of this summer's blockbusters, Elysium feels better and more mature.
But Blomkamp needs a better writer for his ideas from here on.