I'm conflicted on the Halo demo overall. The campaign tease seemed great in everything but visuals, which still don't look very good to me. I think they're having significant engine troubles. The MP demo also looked rough and significantly rehearsed / faked. They seem to have really significant technical hurdles making this game. The lack of specific release date makes me think we may see another delay, and I hope they give it to them if they need it, I guess.
The artstyle is also still very much not for me. I love that it tries to go back to the more natural landscapes of the original Halo games, but the lack of lushness in the environments combined with the cartoony / toyish look of the spartans and vehicles really hurt the art of the game. It just doesn't look very good.
I'm fine with that if the game delivers on its promises of a more open world Halo sandbox with a good story that goes back to the series roots.
But that game worries me, for sure. I was STILL not impressed overall, a year later.