One of the top hands in Hold em. Raise 'em pre-flop, bet the flop and re-eval the turn. If you hit your set, you are golden, if the board is all unders, you probably are goot but with overcards on the flop you may not be goot. The biggest mistake I see others make when playing them is to play them like da nuts. If there is an overcard on the flop and esp. when villain is raising or betting out big, you are dead. It's only a pair of Jacks--fold em and move on.