I'm enjoying it. A few points:
Haven't customized any guns yet, couldn't figure out how to do it and ran out of arsed, will figure it out later.
The whole feel of the game is good, however I find the TTK a bit long.
Where the fuck is hardcore? Who launches half a game?
One of the announcers sounds like she wants to slit her wrists, it's fucking irritating.
The UI is a buggy disaster, when muting people it can take something like 5 seconds for the game to register that I've pressed a button.
General handling of stuff is far too slow, from reloading a launcher to popping out a trophy system, it all takes far too long.
The fact I can both slide and bunny hop is great, so I can pop around corners and pop a cap in the baddies ass like a boss. Or at least that's what I see alot, but I just die. Repeatedly.
The perk system is wank, just give me my fucking perks for fucks sakes.
Unmistakably a Treyarch game, the maps have a very BO2 feel to them, which I like.
The graphics options are irritating, far too much faff.
That all being said, I am thoroughly enjoying it apart from one little niggle.
The absolute braindead retards who play it. The amount of times I've lost a game of Dom only to see that half our team has zero caps is riridulous. It's never this bad on hardcore however, as there aren't as many little bitches who play it, but there is no hardcore so meh.