It fits nicely on the phone and appears to be durable. The phone belongs to my wife and she keeps it in her bag with a thousand other things. It hasn't had a scratch for a while.

It has ears up and down so you can place it without touching the sides of the glass with your fingers, it fits perfectly, all the accessories are included in the package (cleaning liquid wipe, dust cleaner, cleaning cloth, "card" for any bubbles).
Overall, it has the classic quality of Spigen.
This version does not include a helper frame, but with the "ears" you don't need it.
Here: https://install.spigen.com/installation-guide/glas-tr-slim-for-smartphone
Installation video by the company