Been playing it for the last two hours. Servers are shit because they have been down for 2 fucking hours.
I decided to play with Bots and overall I like the maps, they are a bit larger than most cods but I think it works well. My favorite map thus far is the USS Texas.
Played the first mission of the campaign and it's not bad. I'm not a fan of using health packs over regenerating health but it does make the game more realistic.
I'm gonna try to get online in a few hours if the servers come up and I'll probably play some zombies and give my impression on those modes later.