I finally saw it last night at the Imax.
It's such an immersive story that you quickly lose focus of the effects, which is a good thing, and was definitely helped by being 3D and completely engulfing my field of view. But aside from the story itself, it does raise a lot of incredibly important issues about life and humanity that have kinda played on my mind for a long while anyway so it's just got me thinking even more... But then again how the viewer interprets all that depends on each individual viewer. I can imagine it would mean something very different to a closed minded person or a fantasist. There's too much to even talk about really... If someone asked me what it's like I'd probably just put £11 in their palm and point them towards the Imax. Definitely one of the best films I've ever seen.