Picked this up while browsing the religion section at a local library. Though I've heard plenty of controversy about these 'gnostic' gospels, I figured I knew enough to run it through a Biblical filter while reading.
The author(s) do a really good job of putting the book in its historical context, bringing up several points that I had thought about before but never really stated clearly before. As they say, these books don't really belong in the canon (the actual Bible) but they don't belong in the trash bin either. They belong in a collection of 'historical' books continuing the story.
On the other hand... I didn't really see everything they were talking about while reading the actual gospel of Judas. They were saying that whether or not the teachings of Jesus were accurate, we should be listening to the emotions of the writer. In this case, they were upset about the constant suffering and persecution of believers and thought they were wrong to encourage suffering (again, not something I saw myself in the gospel itself...).
In any case, I got more out of the historical context, like learning about how the reason that Christians were persecuted weren't necessarily that they claimed belief in Jesus, but that they refused to worship Rome's gods and were thus treated as atheist and traitors. Interesting huh? Christians were killed because they were considered atheists. Also learning that Matthew 21 is translated quite weirdly was interesting (did you know it says Jesus rode into Jerusalem on a donkey AND its colt?).
So... anyway... my faith is not rocked (any more than it already is), and I'm not off to follow some other cultish belief, so in the end... all is good, and I learned a bit!