The material is very solid and firm, at least outside the leather. The plastic covering shell facing about 2 3 months already broken corners, although the leather cover overtop these corners in the closed position by a few millimeters, and I have not heard anything in the use of the fraction. All recesses where they need to be. The rotating function is also very pleasant. For eigentlichem shortcoming of this shell: The level in the recessed groove is more of a Rutschpartie, especially the increase in the bottom of the plastic back also have access there only once. A very flat surface this urgently needed. Outside the grooves was hardly capable. Compared to my first Belkinhülle, the gummed strip had on the entire width, the current Standfesigkeit with short grooves is a worse choice.