Good, but not great.
1. Multiplayer setup
I know Halo is renowned for it's multiplayer and I find it fun, don't get me wrong. I just hate the random matches. Why don't they go to the select a match list like the rest of the multiplayer world? I'm sick of random game types and uneven match-ups.
2. Cheaping out (Small Spoiler)
At the beginng of the 8th level when Chief lands in the Flood base, does the background look like a concept sketch to anyone else? I think they did it in another level as well. I thought that was pretty lame.
I also found that they cheaped out on the big sound effects. Things that should've been big and loud, weren't at all. Like in the 7th level when the Ship crashes through the window to confront Truth.
3. Mumbles
I couldn't figure out what the hell was going on half the time because I couldn't understand what the Chief or anyone else was saying half the time.
4. False Advertising
I don't know about you folks, but I was stoked for the last level of this game. Judging by the commercials that had been running for the past month, I figured it was going to be a massive free for all battle. Where is the battle depicted in the commercial model?