But I was taught: The application of the film is detailed in a guide describes everything you need for this is small but perfectly resolved (isopropanol-soaked cloth to remove grease stains before installing; cloth to wipe dry; cards for the removal of any resulting bubbles after installation + second film for emergencies)
The ease of use of the touch screen is not affected in any way, also is the film with 0.24 mm very thin and therefore hardly visible. Since the film is made of glass, it feels like the plate of the display.
Total: TOP.
Small note for shipping: For me the whole via Royal Mail has been sent from the United Kingdom, since it is at the manufacturer is a British company. The delivery time was thus not only 2 days as Amazon noted. I ordered the product on Wednesdays, it came on Tuesdays.
-> Those who still have questions can contact me in OnePlus forum, my nickname is "Knork".