It was good. But definitely read the book!!! So much more depth and detail.
I understand why the movie was made the way it was, and I am glad the author was one of the screen writers so he could keep at least portions of his vision entact. There is so much more to the Oasis and The Game though. So much had to be left out, or changed because it just isn't good movie material watching people play Joust.
The book is tremendous, the movie was good. Somewhat better than I expected, at least it mostly stayed on course. If you don't have time for the book, the audio book narrated by Will Wheaton is pretty fantastic too.
Ah to be expected - I feel like this is always true with books made into movies. Good to hear that you weren't all out disappointed though (which is always a risk with movie adaptions). Just picked up a copy so will have to dive into it!