I have played slots all across the U.S. and know of only one casino with tighter machines. I have visited The Rivers over ten times and studied the trends closely. These machines rarely allow you to get ahead. There have been few times when I was playing with the casinos money, it was always mine as the machine systematically eroded my bankroll. I would never take any friends there and will not return myself. I believe the level of greed on the part of the casino is second to none and will be their undoing.