Little bit late for a beta, but meh.
I think that (for pc) choosing which server you want to play on is horrid. Why couldn't they stick with the BF2 way?
I also noticed some considerable lag between when i fired my bullets, and when they hit. No, this is not ping, as I was on a 15 ping server, It seems since the game is running at 30FPS that it is just sluggish.
A lot of people are also complaining about campers. Most of this problem will be fixed with the addition of vehicles, but battlefield is battlefield, deal with it COD players.