When playing against the computer, the AI's card movements are much too fast, and the computer always wins. I've lost my first 35 games (yes, the game play is addicting), many of them when I'm down to only a few cards but the computer miraculously draws exactly the cards it needs to win. There is no semblance of an even playing field in the vs. computer mode. Also, the game doesn't keep track of wins and losses, perhaps because human players can never win. I rated this as 4 stars in the App Store, but the extremely high challenge may ultimately trump my enjoyment. I can't comment on the multiplayer mode as I haven't tried it.