Well I tried it out for a bit yesterday. I started a multiplayer game and just played with the AI on one capture the flag map and one cooperative map.
Most of the graphic options are on low and it runs alright so I can't turn them up really. So the game doesn't look very good, especially for one that is out in 2006.

Then again, look at the rig in my sig.
Apart from the graphics, to me the game was quite difficult. There is quite a bit of keys involved in the game and I'm not sure if you need to use all of them but quite a bit seem necessary. The enemy AI team killed my guys and I pretty easy... they're good shots and I usually didn't see the guys before they killed me. My AI teammates weren't too bad either, they managed to move up the battlefield, take cover, and call out enemy positions pretty well.
The game is a lot slower than I expected it to be, which is probably why I found it difficult. It's definitely NOT like Battlefield 2 where you can move up and engage the enemy quicker. I guess I was expecting a little more action from
the video I saw but it is only a demo and I didn't play for real long (and don't have nearly the computer to get the graphics/framerate in that video).
I'm still going to play it some more before I give a final decision on the game. It's not a bad download at 845 MB, try it out.