I have used many screen protectors over the years and this beats all of them hands down.
1. Installation was a breeze; especially due to the alignment frame it is impossible for you to go wrong.
2. Almost 0 bubbles, whichever came up were very minor at the sides (none in the centre!) and they all disappeared with minimal pressure on it using a microfiber cloth.
3. Good privacy protection - can view screen perfectly when you look at it straight, can see a bit from the sides and then none at all beyond a certain angle.