Best product....ever. I bought one of these a while back to try and I must say, I was a bit skeptical. After using it once, I couldn't believe how great it was! I have tried so many products and methods to clean my windows and glass, but I've always ended up with streaks...no matter what. This is such a great product and I like that I don't have to use chemicals to get it clean. I just fill my spray bottle, apply a small amount of water to the glass, and wipe. It's that easy. I was so impressed I purchased more and I also ended up trying the stainless steel one also, which is just as great!