I have been playing on lagnet 2.0 for a while now on beta.
I don't want to burst anyone's bubble about this game but.......
Its really not playable on any form of shaped dsl, the ladder is highly competitive and the overseas people simply kick the **** out of you with macro'ing their units around you.
If your only into the single player, well it'll be worth it, I've seen a few preview vids of the campaign and it looks awesome, but paying that kind of money for 1/2 a game is silly in my mind.
Don't even try to reason that you can use any of the unshaped IS accounts, they lag far worse then any saix shaped account, and its unplayable on a saix account, I had to pay for an unshaped weba account, made it playable.
O, and even if you created a game amongst friends, lets say, 2v2, yet you are all from SA, it wouldn't help, it would seem that all the network traffic goes through bnet 2, so your still stuck with the lag, we even had one of ours friends dc from the game, and there was noway to rejoin it. Its why I actually like the idea of HoN, wish sc2 could implement something similar
/ end rant
Sorry about the bad english / spelling