The fit of the inner part made of soft silicone is ok, but not outstanding. The silicone smell but clearly for plasticizers; if you want to have on the plastic back of his G2 something I leave to each self.
But the main point of criticism is the outer hard shell: This is from a processing perspective only moderately. The hole for the camera, buttons and Flash LED is around too small, so that the tray rests on the narrow plastic border around the camera and buttons instead to lie flat against the back of the G2. To make matters worse, the shell is also still so warped that they can not lie flat. Overall, it makes the impression of cheap injection molding, came still soft from the mold.
Conclusion:
Protection is probably good (not tested, but makes a solid impression), quality is rather moderate.
Not really suitable for everyday use because too thick and the outdoor area is recommended rather something higher quality.