I ordered a Monday, and I received a Thursday. Suffice to say that delivery is fast (mostly from Germany).
Protection is certainly more expensive than others, but it fully addresses the need for protection of my G Pad 8.3.
The instructions are multilingual, and if we respect them to the letter, there was no bubble / dust. At the brightness loss, I did not notice any change. Ditto for viewing angles. However, I noticed some adhesion of the screen after installation. See over time if this discount ...
The protections are provided with a clean screen size more than correct (compared to other near-identical products)
To summarize: I recommend!