I've been playing the limit Pokibot client. (http://games.cs.ualberta.ca/webgames/poker/). Apparently Stacked is going to use it as the basis for their AI.

I don't want to dis anyone. I believe it is the best AI around, but I didn't find it hard to beat. I played about 1000 hands and beat it for over 10bb/100. I can't do anywhere near that at $1/$2.

Of course I could have been running hot, but others have beaten it for 30bb+/100 over 1000 hands. Also there were a couple of hands where I just called down to see what the AI was doing.

Stacked could be good fun, but I wouldn't expect it to be much use for training. Perhaps a bit better than play money tables?