I read a few posts but never saw any one having issues with glass protectors.
BUYERS beware.
I have been fighting with my new s7 exynos for the last week and a half. With crashes, 0.5 lags, laggy ketstrokes etc, factory resets did not help. I removed the screen protector last night and so far, it seems as though it's all been because of this EFM screen protector. Btw the screen protector went on before I touched the phone.
Its a total different phone, so keep that in mind when buying screen protectors, or new phones for that matter.