I recently moved to a different apartment around a month ago. Every time I would wash dishes there would be a white, gunky film on everything, not to mention most of my plates and stuff are black. I tried using Jet Dry, and it seemed to make the problem worse. I started doing research into what was causing the film and discovered it must be because of hard water. While reading up on it, I saw another person's post about Lemi Shine. I thought I would give it a shot because I was so tired of re-washing all my dishes by hand to get the gunk off. It was either Lemi Shine or one of those expensive dishwasher filters. I just did my first load, and I can't believe the difference! Everything is spotless. I'm so excited that my dishes are finally clean for once. I really recommend this product to anyone who has problems with hard water. It's great!