Actually, the bumper is quite nice. The rubber frame is about 1-2mm and thus the iPhone is well protected against scratching when it push them across the table. The connections below are free, and you can connect the normal USB cable to Lightning. Thicker Lighning plug fit, not like in all other cases. The switch is also above usable. Unfortunately, however, no longer go the buttons for the volume change. Thus, the bumper is not to be used. Since Bumper sits very tight, you can not just strip to change the volume him. Since I have only one copy, and will also grow me no other, I can not tell if this is a fundamental error.
