I love his performance. I think he is a more genuine character than some of the other AI characters in other games, he isn't batshit crazy or extremely annoying. People are comparing him to Cortana, Guilty Spark, GLaDOS, and Claptrap. Personally I think hes a combination of Marvin the Paranoid Android(Hitchhiker's Guide) and Data(Star Trek TNG) with a little bit of Pilot(Farscape) mixed in. Though, he is his own character with his own personality. And we have only seen a minor fraction of what the full game is, I'm sure we will see a lot of character development. I thought Cortana was annoying for the first quarter of Halo: CE, and I'm not alone.