After a lot of advertising for this product, mainly by Pantelis (pan the organizer), I decided to order it about a year before it officially arrived in Greece. After using it several times and having used many similar products, I can say that it's nothing special and I was initially excited about it. First of all, as soon as you spray it, the struggle begins. The streaking is overwhelming, you can't spread it properly, and it leaves marks. You have to constantly have a damp cloth and wipe it off, which means you're removing the product, but there's no other way. On glass surfaces, it becomes cloudy. Okay, it does leave a sleekness and gives it a shine, but like any wax or synthetic product. I conclude that it's better when applied on wet metal (which can be done), but even then, there's the gyeon wet coat, infinitely better in every aspect and much easier to apply. I don't know the exact duration, I can't tell, I think it lasts around 4-5 months. It's not the one year that the company promises. That's it.
Note: The claims about graphene are a joke, that's why they say "infused" and then in small letters write "wax," do a search on the internet about it. Essentially, it's just regular wax with a minimal amount of graphene oxide (= graphite). I'm not saying it's bad, but okay, it's just a wax.