Played it to completion last night, and it was amazing experience.
Thanks to the 7 other people that I got to share that experience with throughout my journey!
I have no idea who I was paired up with, but apparently I came across 7 unique people, and it was a blast.
I think I completed it in roughly 2 hours or more, but it was amazing. I spend $15 to see a mediocre in the theater for 2 hours, so this game (which I'll be playing again tonight to explore and collect stuff), didn't feel overpriced to me.
I'd love a Vita version, because, man, that OLED...
The game was beautiful, and some of the locations, choice of lighting and effects, and music was amazing. My wife watched me play the whole game, and loved it. She'll probably play it herself at some point (it's not that she isn't a gamer; she's addicted to games like Skyrim, Dragon Age, Mass Effect, etc; but she generally isn't interested in games like flow and Flower).
The sand just amazed me, and I really can't wait to dive back into it when I get home from work. It may be a short game, but just like Flower, I can see myself popping it in every few months, just to unwind.