Overall I like it, there are some issues at least IMO.
Multiplayer with parties: Lots of connection issues, not getting into lobbies, members kicked constantly. I have heard they are working towards a patch for all that.
Spawning: The spawning is terrible, but I guess all games of this type have some spawning issues. Enemies spawn behind you a lot, and directly in front of you. But no biggie really.
When I saw "Black Ops" as a title I had my hopes up for a game that would mimick RL SF operations, and in the campaign there is one or two missions that lets you use stealth. But mostly you run and gun against an army of enemies.