I played it for a while in January but I got of got tired of it, because it's basically just Quake 3 Arena with a few changes for competitive play. If you're not a seriously hardcore ego shooter player, this game will frustrate and bore you quickly.
It does however, have a difficulty grading system for servers that allows you to find a game full of people of equal (or lesser lol) skills. Stat tracking and friends lists and whatnot turn it into one of those community games like Battlefield 2, which is cool I guess.
Since I'm Canadian, I guess the beta is either international, or they consider Canada to be "practically American".