I was entertained and I enjoyed the movie. Thought the CGI and 3D was well done, had a lot of fun picking out the pop culture references, video games, movies, toys, clothes etc. If you going to see this for depth of story or character development, please avoid this movie
I put the Acting and Story at a C-
I put the CGI at a A-
Pop culture references A+
IMAX 3D is the way to go, just so you can see all the massive amount of Easter eggs in this film
I was familiar with the book content, so I knew it was not going to be too deep in story. I think in that case it actually improved upon the book.
In my case my expectations were exceeded, because I knew it was not going to be another Tron type of movie (which I am a huge fan of)