I'm reading it for my third or fourth time and it's still awesome!
I love the writing style, borrows from Faulkner and Vonnegut and is just plain amazing.
I also love how Stephenson has a wide base of knowledge; and he knows what he is talking about, even in the mundane stuff. THe way he describes Californian Academics, spot on, and he even displays obliquely his knowledge of the california highway system
Paraphrased:
"He drove down the coast, the slow way, the beautiful way."
Highway 1, baby...
See, he doesnt describe the highway system in great depth including dates like tom clancy would, he just implies knowledge. I like it.
For you math whizzes, how does his math look?