I like it, personally. It's great. Campaign was amazing, lots of cool new stuff.
In my case, instead of the big mention of kids saying "Happy Black Ops Day!", it's the people who don't like Call of Duty that get on my nerves.
One kid. He is so freakin' obsessed with Counter Strike.
"COD is dumb, cs is win...THE GAME" Or some stuff like that. I'd complain more, but that would be off topic, and I already AM getting off topic.
ONTOPIC:
Campaign 10/10
Multiplayer 7/10
Zombies 8/10
OVERALL: Great game