I'm really not sure about this product. It claims that it will help dishes come out cleaner and reduce water spots. Its supposed to be really great for wine glasses to prevent spotting (which drives me nuts). I just can't really tell if it makes that much of a difference. My wine glasses still have water spots on them when I use this, but I think they may be slightly reduced. When I forget to refill the dishwasher I do not notice right away, which you think I would if it really did make a huge difference. This stuff is expensive and the bottle does not last for as many washes as it claims. I'm kind of up in the air about this product. I think it does help with water spots, but not enough to make me sure that it is worth the price tag. The good news is it really can't hurt, so you might as well try it out and see. It is possible it could work better in a different dishwasher. But for now I'm going back to hand washing wine glasses.