The mechanics of the virtual world really bothers me
I have not read the book and have only seen the trailer, but here is what bothers me about movies such as this.
There is a virtual world into which they enter and seem to be able to experience with full sensory input. The Matrix did it the best in my opinion, since you plug into the virtual world and accordingly your brain is fooled into experiencing all sensory inputs. You can feel as though you are falling, jumping, swimming etc.
However, when you are accessing it through VR glasses, you are literally just playing a game like with a VR headset, and the manner in which the immersion and interaction with the virtual world is depicted makes no sense to me.
It would have been much cooler if it was a matrix-like interface, meaning that you could ACTUALLY have a virtual world to engage with all of your senses and thus having complete immersion.
I do not know how this movie will handle it, but looking at the trailer makes me think it will be pretty much how I assumed above.
Edit: Just cleaned up a sentence