I was not to keen when it first came as all and sundry were raving. But after using I found the glass cleaned better and did shine much better. I think its a good product as its not easy making something that will clean in pure and not leave streaks The bubbles on the glass do make you think it will not work, but surprised, surplise it dryes perfect all round a good product.P/s does give a brilliant glide with the brush on the glass. I Like. Sceptic turn a happy customer.