Rented it, played it through to just after the Russian invasion of America and just thought "meh".
It's not the 'masterpiece' it's been hailed as and I did find the airport scene to be tacked on, gratuitous and worthy of all the criticism it received (and I'm not a Daily Mail reader, nor a censorship advocate).
It has some nice touches (I did like the heart monitor motion sensors on the icy russian base setpiece) and I can't comment on multiplayer as I didn't try that but the game as a whole was ok but the storyline bordered on the ludicrous the more it went on as the jumping around from different, unrelated areas and people got on my nerves a little and meant I wasn't personally invested in my character. Sound was good and voice acting was generally well done.