I caved...
Gave myself CoD6 for Christmas, and despite some of the annoyances and gripes already mentioned in the community, I'm not regretting it.
The SP campaign was short, but awesome!!!
Special Ops is a fun addition and change of pace where you get to run short missions (single-, or two player) against time in various difficulty levels, and MP is overloaded with unlocks and perks as expected. I'm not a big fan of some of the things IW stripped from the PC version, but I will say that joining as a party to play on the same server is a breeze through Steam. It works almost exactly like Xfire and adding people to a party and joining a game isn't hard at all.
The only downfall I've seriously encountered is not being able to play the same map over and over (for the purpose of learning it, or simply because you like the map) unless you host a private game. IWNet decides the map for you, while you only get to choose the game type - that's annoying! This in turn has led to a very steep learning curve in MP, trying to learn all of the 16 new maps, while at the same time leveling up and unlocking weapons, attachments and perks to stand a fighting chance against the better players. The 6v6 and 9v9 games are perfectly fine as there seems to be more than enough action and close combat to go around even with fewer players, and it also makes you "dislike" certain people on your side that drag the team down (since every player is more important if they don't hold their own), hehe.
Server migration doesn't happen often, and usually only on less favored maps and/or game types. I've yet to see it happen in Team Deathmatch...
I will say this though, I'm having a helluva good time and it still feels like Call of Duty IMHO, only better looking and more difficult (for the time being)!
