It's great at reducing glare. 🙂 I just came from an Apple class for new iPad owners (held at an Apple store) and it was used as an example of one using a screen protector.
After the class I went and got a bite to eat at a location where I had previously used it but had problems with the overhead lights reflecting in the screen. This time I barely noticed a glow in one part of the screen.
Also, there are virtually no fingerprints/smudges on the screen now. Someone who tried it at the class said that she was surprised that it was not sticky and that it felt the same as a screen that was not covered.
I really didn't see that much of a change after it was applied other than the fact that the glare and the fingerprints were gone which were good things to not have to deal with any more. 😉
Another good thing about this particular brand is that it was extremely easy to use unlike some that I had read about and viewed videos showing the application processes.
Yes, it is similar to using a matte monitor which I do use at home with my desktop since I (personally) cannot deal with reflections on my monitor when I'm doing websites and graphics.