The only shortcoming is that the disc is not concave, and the iPhone display. This means that the film does not cover the edges and attaches itself there is not completely fixed. The looks of course not good, but the film still serves its purpose. Ansich it is also very thin, and barely visible, the small margins would not.
I would recommend this product.
"Stick" to +
+ Delivery time
+ Very thin
-Small edges, by a lack of bending