This was beautiful; a movie you need to experience in the theater. I was afraid there would not be much of a story given the hype on the technology but I did enjoy the story as well. It was a bit predictable at times but it didn't feel any where near 2 hours and 40 minures.
Note that two in my party felt nauseous from the experience. I, however, am quick to get car sick but only felt a glimmer of nausea for less than one minute at the start.