I can definitely understand how someone could get motion sickness while watching, especially if they are prone to it. I just think it's crazy that people are belittling the film's technical complexity. They're jumping to the conclusion that the shaky camera equals laziness on the cinematographer's/director's/producer's part, which is absurd in this film's case. I mean, it's not like they just handed the camera to an actor and said, "go wild." The shots are well thought out, showing the viewer everything they need to see, while still feeling like chaotic documentary footage (which is pretty impressive in my eyes). Very reminiscent of the visceral WTC collapse street footage.
I didn't mean to single you out before, it was just the first comment my eyes landed on that suggested judging before seeing. I didn't mean any offense by it.