There's a slight paradox with this execution of this book which might thrill or annoy the lot of it's readers: It reads like a Heinlein juvenile upgraded to all the geeky post-singularity hacking terms we can take a swing at. 
 Huh? 
 Specifically, I think of Have Space Suit--Will Travel if we'd substituted a kid with an engineering project with a real-meat man in a completely digital society, get him embroiled in Objectivist Religionists (BIG LOL there), several courtroom dramas filled with some really zany characters such as a judge who is a dalek, and ends up with a galactic singularity overmind checking us over and using this poor sod to determine if we, as a species, deserves a chance to keep on living. 
 Fairly simple story and it reads very quick, but the best part (or the worst, depending on your tolerance for geeking out with tech and post-singularity societies,) has got to be the world-building and the ideas, with the satire being a distant third. :) 
 I personally love singularty stories. And if you need a description, just assume that all matter has been turned into computers and we've all been uploaded as pure minds to live in any kinds of realities we desire, then you'll have a pretty good feel for it. 
 But where's the conflict? Oh, it's all mental and ideological and sometimes even territorial as long as you can wrap your mind around major causality loops when you tamper with the fundamental forces of matter. :) 
 In other words, this is a simple story with a dense layer of computronium and satire wrapped around it like bacon around a nice juicy steak. 
 Not that it doesn't have it's flaws, of course, but if you like this kind of thing, you really shouldn't miss it. :)