Betfair

Just a quick question. Has anybody ever tried Betfair? I have been using it for a while now with very mixed success (as you will have noticed). I am playing about with the Poker (Texas Hold'em) using a betting bot which is in beta test at the moment. Anybody else using one? Had any success with it? I have tried about a dozen strategies and each seem to have their moment but ultimately fail. Am I doomed to fail? Is the random nature of the game going to be my downfall? Comments anybody?

Byeeeeee