Ive owned this product for about a month now and purchased it because I was frustrated with seatmates on airplanes looking at my notebook screen for the whole flight, trying to figure out what I was doing. This screen works wonders in deterring others from taking glances at my private information. In fact, most people think Im crazy, typing away on a computer with a blank screen, or so they think. There are some disadvantages with this screen though. Your seatmate directly next to you will be able to see through the filter to your screen partially, because they are within the viewing angle of the screen with the filter on. But move over any farther and the screen is not visible, nor is it visible across the aisle (if sitting in an aisle seat). About the only other place that it is visible is if someone is standing directly above you, one row back. Turning down the brightness of your screen also helps immensely in blocking people from viewing your screen through the filter at any angle. (Please note, having this filter installed screens out about half of the light coming out of the screen. If you have poor eyesight with dim lighting and have trouble with computer screens, this product may not be for you.) Additionally, the clear plastic tabs included with the filter adheres to the plastic border around the notebook LCD screen to keep the filter in place. It works, but blocks about a 18" of the screen at 6 points, especially noticeable around the bottom of the screen where the start bar is located. Youll also notice a large "3M PF14.1W" printed in the top right hand corner of the filter. Its used to help in determining whether the filter is facing the right direction, but its quite distracting at times. The height of the lettering is equivalent in size to the window bar at the top of any program. This filter is also very dust, lint, debris, and smudge attracting. Youll find yourself wiping the filter often. Overall, this filter does its job. Great for those who need t
