I started with the series with Modern Warfare 2 and this will be the first one since then that I don't get. I don't know, it just doesn't appeal to me too much right now. It seems like you need to have a ton of friends online in order to make these games any fun. I'll connect with my brother at times, which was always entertaining, but our schedules don't mesh too well.
Unless I suddenly find some new free time, I wouldn't have any chance to really play this one anyway. I'm still trying to finish up Borderlands 2 on the PS3, but playing that once every two weeks isn't too efficient.