That lock box is really nice. Very high quality. Even the duffel bag is surprisingly well constructed, with a nice gold "R*" interior lining.

The soundtrack is alright, but will be online in a matter of days (if not right this instant).

The key chain is pretty nice. Very thick and solid steel. The art book is kind of whatever. It seems like every game has an art book, now (Assassin's Creed, Mass Effect, Halo 3, and so on) so that's nothing real special.

Overall, the bonus stuff does have a high quality to it, unlike most SE extras, which are usually Happy Meal Toy quality (ie: Altair figurine, Ninja Gaiden DS sword stylus, etc.)

My only gripe is that the game itself has the same artwork as the regular edition. Would have been nice to have some alternate artwork.

I do like how the PS3 and the 360 SE boxes are different, though (http://media.tumblr.com/pv4uqfgfc87ebqz7LWISer3G_500.jpg)