Ok if your looking for a way to work your abs I believe they are good because I know someone who is in fairly good shape and he says they really work. It you do decide to purchase one remember to get the Ab Lounge 2 because the orginial one was recalled. But it comes with two workouts, a beginner and an advanced, on either on VHS or DVD. If you really want one I would say they work but I would prefer to jsut say the money and do good old crunches and walking to get rid of my middle.