Overall I like it, the TTK is long, but it gives you time to aim, this thing is arcadey AF.
The maps are too big for TDM but other modes they feel ok.
I think Fireteam is pretty awesome, I enjoy the BR map features, like buildings everywhere, useless loot, but I hate that when you die you've wasted all of your time, this mode solves that enough for me to enjoy it. It's more like an older BF game, which is pretty neat. Shit, that makes me wish for a new Bad Company, the mode would be even better if buildings were destructible, fuck I'm such a sucker I'd even take a BF:BC 2 remaster for a discounted price.
I liked MW last year, but what made me uninstall it was the awful patches for ALL the MODES, even the ones I didn't want/care about, that really pissed me off. I hope this year they have a TRUE solution to it, I'd never want the hunk of shit that Zombies is taking up my HDD space.
I'm not going to buy it day one, but in the inevitable BF or Boxing Day sale, I'm in at any discount.