Simply Awesome
Simply put, the game is awesome. The graphics are sick, the music immerses you into the game, the gameplay is one of the best for an FPS (consoles and PC), the campaign finishes the story, and the best part of all: the multiplayer. For a console game (PCers, relax) the multiplayer is second to none and won't be for some time. The Forge adds an entire level of multiplayer gameplay that fans should enjoy for the foreseeable. The options seem infinite.
The only criticisms I have are the following: 1) the campaign is a little short; and 2) the story almost completely cut out the Arbiter's story arc. 9 levels of campaign are ok, but I guess I expected a few more levels. And while I didn't want to play as the Arbiter again, I felt that his story could have been addressed a little better.
Bottom line, this is the next-gen game to compare all other next gen games. It is the total package, and every other game is playing catch-up.