The collection of items within the Special Edition is well worth the price.
You get a Vinyl Record which has the soundtrack of the first game
A CD of the Bioshock 2 soundtrack (which itunes recognises)
The art of Bioshock 2 Artbook which is very detailed and the art is amazing.
also 3 Lithograph posters from Bioshock 2 of in game Adverts.
And of course the game itself, of which the cover has a metallic sheen quality, which will make this stand out from your collection.
The game itself is very fun and frantic and full of atmosphere. The story is great and there are so many other stories you come across along the way.
Playing it on hard I found it really challenging, but in a good way, but the difficulty can be changed even mid game. Throughout the game you become more powerful and the last part is very heart pounding.
The multi player part is also really good, I'm not a massive fan of online game but this was easy to access and the first couple of levels unlock even more weapons and plasmids which encourage the player to continue player. There are a variety of other game modes and I would reccommend playing it.
Overall the Special Edition is very much worth the money, I'm glad I bought this instead of the normal edition because the contents are brilliant.