I ordered this case for my GoPro Hero 4 The door is not really suitable for my camera, because the little black foam strip (see the first image in the bottom right) hides my screen. I had a little trouble to change (fear of breaking)
The quality of the case is slightly less than that proposed by the GoPro brand, but the price offered by the brand is too excessive for my taste.
No particular problem with the buttons, and I could easily connect my microphone