I can see why it got a lot of criticism for certain story/character elements. There's definite room for improvement there. Ultimately, it's really hard to care about them when they're being that dumb and annoying. On the other hand, I can also see why it got praise for its visuals and audio, and I did like some of the ideas in the movie, even if they don't dig too deep into any of them. I don't mind the lingering questions, but it does put pressure on the sequel to really deliver something mind-blowing.