I bought this kit yesterday, spent a few hours in the garage sanding, buffing, and polishing. the windshield doesn't quite look "NEW" but dang close. maybe a few months old anyway lol I highly recommend this kit. I just wish I had taken a before and after of it. before it was pretty gnarly, like, cut it down so I could just see over it and paint it gloss black gnarly, now I can see quite clearly through it.
(I'm not responsible for your results, just very happy with mine.)