When i first started playing i loved this game. I thought the control was great (once i modified it that is) and the graphics were good. I liked the fps levels and the on-rails shooting levels alot. The driving levels were ok at best though. Also it was kinda short (i beat it in 3 days) and the last level was too easy. However, i liked replaying missions to get better medals in order to unlock stuff. Overall i would say the one-player experience was fun but flawed.
When i started up the multiplayer part of the game at first it looked like something they threw in at the last second. It had fairly small levels, no cpus at all, and nto many gameplay modes. However, after unlocking things and investing more time in the multiplayer mode, i found it to be very fun. I found it very fun to use my q-claw to swing around the levels and hang from ceilings to snipe people out below me. Agent under fire may not be as good as Goldeneye, but i found it to be an enjoyable experience.