Within minutes of starting this game you'll be entirely captured.
If you want an RPG-like action shooter, than this is the obvious choice. The controls are easy to pick-up on and hard to put down. The Horror aspect to the series has been somewhat destroyed, but in it's place is an action packed adventure that compensates some of the upset.
The game is completely done in a co-op intended story. The solo and co-op campaigns are similar in every way, although it is much more fun to plan with a friend, rather than the poor AI characters that many games seem to burden you with. The statistics tracked for the game in the "records" section are fairly extensive, not including the leaderboards system that keeps track of all levels, game types and difficulties. The mercenaries minigame is playable solo, or duo, and scores are tracked for both separately.
Apparently, there will also eventually be DLC on the XBL Market to add a versus game type.
The only disappointment I received really was the further butchery of the storyline and the lack of horror that the game originated off of.
In conclusion, if you and a friend plan on picking up a game to share, this is worth the time and money.
SUMMARY:
The Good:
Amazing graphics, satisfying kills/executions, Fully compatible co-op throughout the entire campaign and "Mercenaries" minigame, action packed, loads of bonus content, RPG like inventory
The Bad:
Gameplay can be ruined by poor AI if not playing in co-op, The Resident Evil storyline undergoes further punishment