Snow Crash is definitely a fun read. Word of warning though, don't go in expecting to take it particularly seriously. It has some dark themes typical of the cyberpunk genre but overall it's tone is mostly towards the lighter end of the spectrum. A lot of the praise it gets is precisely because of its relatively light-hearted nature, fast pace and heavy use of irony but it's not a heavyweight book like a lot of other Stephenson works. I can probably best describe it as Ghost in the Shell meets Judge Dredd meets Idiocracy. The fact that the main character's name is Hiro Protagonist should give you a good idea of what the story's like.