I am really satisfied after applying the privacy film. From the front, the screen is clearly visible, but from the side, the screen is completely invisible, so you can use it without being noticed on the subway or in a cafe. The touch is smooth, and there is almost no image quality degradation, so I didn't feel any inconvenience while using it. Especially when handling sensitive data or personal messages, it becomes much more psychologically comfortable, making it highly recommended. It's better to attach at least one.