What I thought of...Original Sin #0

Original Sin #0: This issue kicks-off Marvel's big summer crossover (I think, don't they have something else coming out too? No? All right, I'll take your word for it) and what wouldn't a big, blockbuster Summer Comic Book Event be without an issue #0 that introduces the players?
The Good: Obviously, the art. It's Jim Cheung & Paco Medina! I love both those guys! And seeing them drawing not only Nove and The Watcher (The 2 main characters in this book. OK, pretty much the ONLY characters in this book), but some pretty spectacular moments that have happened throughout Marvel history, is pretty awesome. I also liked the pretty much one-sided conversation between Nova and The Watcher. The creative team really played that up and it works great.
The Bad: Unfortunately, this issue is a little lacking in the story department. It has a good one, but I really don't think this is an actual Original Sin lead-in, so much as it is a "Hey, remember the Watcher? Here's his deal" kind of issue. In fact, readers of Nova should especially read this issue, as it contains something that's VERY important to that title.
The Verdict: Toss-Up. It's really your call. If you want something that leads into the Original Sin story itself, pass on this issue and just pick up issue #1. BUT, if you like Jim Chueng and don't know anything about The Watcher, you should grab this one. It's a nice refresher course on who he is and what he does.