Please excuse my attempts at humor. It's a defensive reaction.
I really, really wanted to like this film. It has been on my watchlist for like 3 years, and I was constantly checking on it. I hoped for Wan as a director, but when I saw Blomkamp, I was pleasantly surprised. I wouldn't say I liked Elysium, but I think Neill is a talented director.
With that being said, I give this film a lot of credit and a 6/10. It had its moments, but the negatives overcame the positives. As more people will watch it, I think it will drop down to ~5.5 or less.
There were three major problems for me:
1) the dialogue was unbearable most of the time;
2) the amounts of exposition thrown in these were overwhelming. The story comes to a halt for 10-15 minutes, and then BOOM, you get bombarded with information the characters share (the things they already know btw). And it's not that confusing to provide this much flashback.
3) the whole technology/occult combination was fresh, but when they tell you the point of all that, it just becomes a laughable excuse and an insane over-complication of what could have been done.
Throw in some heavy continuity, and the majority of the viewers will probably dislike this. The ending clearly shows that at least 10-15 minutes of it was missing, the main lead teleports way too much, and some scenes end abruptly.
I want to mention some positives as well, the film did look good, and I enjoyed the ending night scenes. I constantly felt like I'm giving this film much more creditworthiness than it's worth, but I saw some potential in it.
And yeah, while interesting in their looks, the simulation scenes lacked creativity, and the entity of which we got no information looks like Radament from Diablo 2.
Overall, this is not a horror film. And as much as I appreciate the effort, I didn't like it as much as I wanted to.
