Its application and the grip of the mobile with it are flawless, very convenient, and you feel safe that your mobile will not slip out of your hand. The only negative thing is that I barely "wore" it for a couple of weeks, then I put another one for a few days, and this one (Nillkin) started to turn yellow in the drawer. However, now (update) after some time it hasn't gotten worse, and it holds up just fine. I approve!

Update 9/19/2023
I have gotten the same "smoke" one, and it has been perfect for months! It doesn't turn yellow or anything, and it doesn't reflect the sun towards you (like all the transparent ones on the top), the most convenient case!

Update 12/4/2023
I still have the same smoke one, permanently on my phone every day, winter, summer, sun, etc., and it is flawless. No signs, no scratches, and it doesn't turn yellow like the plain transparent one. I love it mainly because the phone is secure in your hand, its corners fit perfectly in your hand