Today I had to involuntarily, test the protection function: When the battery pack my battery grip (200 grams) less than a meter fell out of the screen to me.
The glass is completely splintered (see product images), but after the removal of the film is not the slightest scratch on the EOS was visible display.
So I forgive for protection full 5 stars.
Unfortunately, the product in the last 2 years has become more expensive over 5 euros,
However, that's still a tiny price as opposed to the repair of my Canon.
Conclusion: I would highly recommend it!