Bests & Worsts Reviews from Amazon

I'm a consultant who travels weekly. Lots of time on flights makes a privacy filter important to me. Being something of a perfectionist and the fact that I look through it for hours each week, I ordered both the ViewGuard and the 3M filters to compare them. I kept the 3M and returned the ViewGuard. Why? The image clarity of the 3M filter was significantly better (note that I work with small fonts, spreadsheets, etc. and wear glasses) Yes, ViewGuard, I removed the protective film before making the comparison! Two things bugged me about the ViewGuard: (1) its polarization cuts run diagonally (the 3M run vertically), which is distracting, and (2) the image through the ViewGuard is a tiny bit blurry/hazy compared to the 3M. 3M seems to have a more clear film that they use. A colleague of mine did the same side-by-side and agreed with me. Both products do what they claim, and both fit my notebook well, although I also prefer the optional vertical mounting strips that come with the 3M product (both come with mounting 'dots', but 3M supplies an alternate mounting mechanism as well). Let's face it: $50 for a piece of plastic seems expensive, but there's no alternative if you want to work on client (or your own financial) information on a plane. Thanks, 3M, for making a quality product. (And no, I don't work for 3M!)