Fun game, can be very competitive but it's just better on PC.
The game is totally different then on the PC as far and movement and looking around. The Unreal series is known for its faced pace map control style of play and unfortunately this cannot be achieved on the 360. If you like slower paced games on the console like Halo then I think you will like this game. If you play quake on the PC stay away from this one.
Epic did not implement a matchmaking system which is becoming a standard for great FPS shooters, so finding a good server that has a good amount of players is nearly impossible. If you are going to by this game buy it on PC not the 360.