First off, the movie itself felt awfully rushed, and I think they could have cut it to two parts or at least three, so they could have made a trilogy out of it, in order for us to be more invested in the story/characters etc. Second, the characters themselves weren't fleshed out enough. I didn't care much about any of them. The first question was really stupid, I mean like c'mon! Nobody ever thought to go backwards or just even by an accident? - Sounds a little bit too convenient to me, wouldn't you agree? Though, Ben Mendelsohn who played the bad guy in the movie was pretty good, and I sorta liked it. As for the world building of the Oasis, it looked pretty cool. That being said, it didn't save the movie. Verdict: the movie itself is just eye candy, nothing really more than that. It's filled with lots of geeky easter eggs that will keep you invested in seeking them and less in the characters/story. It had a cool concept, but it didn't live to its full potential.