From PS3Blog.net: I haven’t been able to play the KZ3 beta very much, just because I couldn’t get online. After the patch last night, however, things were a lot better. I could connect no problem, and so I played several games. I was placed in several Guerilla Warfare matches right at the end, which was frustrating. But I also got to play through several full matches of Guerrilla Warfare and Warzone.
I’m going back to the store and asking for me pre-order money back. There’s no way that this is an enjoyable game. KZ3 is more frustrating than MW2 ever was.