1. It will not protect your note 9 from dropping.
2. It good for preventing scratches and scuffs.
3.it does smugg and leave finger print all around, easy to clean off though.
4.It works perfectly with the cover on.
5. Fit pretty well. Cut outside all in the right place.
6.And you do see the tiny air bubbles on the screen
7. Don't use a screen protector as it give an impression that water is under the screen, very annoying.
It's good but not great. If you don't have a screen protector already on the note 9 I recommend it. Otherwise no.