I think they suck. I expected the knockout part to be a bonus. However, somebody was obviously playing only for the knockouts. I made a legitimate 4x raise and he re-raised; I called. Flop seemed to be bricks, I made a pot sized bet and villian went all in. I called to see his crap cards. He got runner-runner something to put me out. I guess I closed the tournament in disgust and didn't get the final hand history, so this is just my recollection.