I downloaded the Enemy Territory Quake Wars demo the day it was released. Been playing it every day, i'm really hooked. I felt as if i have been waiting forever to play this game. Not sure if i would get it when its out next month, i think i will just wait till the game becomes popular so i wouldn't have to end up getting a game with empty servers 
For those who haven't tried it out, the game also has bot support, so you can play without having to connect to a server and get lag. The bots on normal can be challenging but they can also be stupid (like always) sometimes you can see them riding vehicles trying to climb on walls and such. At least they are good giving support and getting objectives done, not all the time but they will get the job done. And the opposing team can dumb at times, they sometimes pass by you and won't even bother to shoot you unless you shoot at them first 
but again, they will get the objectives done, like putting mines on places where a FieldOps must hack or a soldier need to plant explosives. This is why MP is the main reason to pick up the game.
One of the reasons why i was always interested in the game was that its focused on team based missions, not just your ordinary Deathmatch or solo MP type game. It might not be all that exciting for a few because not everyone on the server will play as a team, trust me, i have played with a lousy team couple of times. But i have always prefer Co-op MP type of games, when i used to play F.E.A.R. MP i always played Team deathmatch or CTF. Not sure if the game is well balanced, i still havent played as the strogg yet, will have to train first against the GDF bots. A cool feature is that you can earn experience points and be awarded with new weapons, faster construction, sprint with heavy weapons and others, so its a good idea getting all the objectives done, not only that, but playing good earns you badges. Well i don't want to post more about the game especially on the GDF's objectives, so i wont spoil anyone here.
I think if you like EA'sBattlefield games, you should check Quake Wars out.
If you are playing it, what are your impressions?