Of course, the smart thing to do is get up a little then play lesser stakes than doubling up (which you can do), so that you don't lose everything in one unlucky game. It's still pretty damn nifty. You watch a 20-second clip before each game, but pretty soon you learn what ads they're using and can skip the clip, answer the question, and move onto the game without wasting time.
It's a lot of fun. You need an invite, so if anyone's interested, I have a few invites that you can grab here: