I didn't know what to expect coming into the film, I didn't know it was one of those... 'every angle is shot from a character's camera' movie until the night before. But it was seriously awesome. They found some silly ways.of implementing the cameras throughout certain scenes but the overarching story and action were incredible. Also, if you're familiar with Akira, you'll notice some slight parallels and likely inspiration taken from that during certain scenes of this movie.
Seriously worth your money, go check it out. My only gripe would be that it was pretty short, but I saw it early in the day so I felt it was worth every penny.