Having read it again not too long ago, I was actually surprised by how much of it was not good.
The framework was interesting, but much of the actual writing wasn't nearly as good as I had thought.
Maybe it's because I had read it in a Dutch translation the first couple of times, and the translator had had improved the prose without intending to, or maybe it's because it was many years ago.
Whatever the reason, I felt like it needed another pass of the editor.
The movie, on the other hand, still thrills me every time I see it.
Looks like it's two separate projects.