I thoroughly enjoyed the campaign, but unlike COD4, I'm not compelled to go back to it. The gravity of the situation and the chatter made it feel more authentic, and the ending still sticks with me. It's more of a, can I take this emotional ride again, than a 'this campaign makes me want to thrust my keyboard into the monitor' sentiment.
I just wish that the multiplayer brought more to the table. It was playable, but the progression was just so mechanical. I didn't enjoy the aspect of the game that should've been the most replayable, but c'est la vie.
I'd actually buy the sequel if the campaign was as good. If they don't botch the console versions first day. I'm not a big PC player, but it was smooth as silk, whilst the console version I played was not.