This shell S4 mini is not bad, it's strong enough to air to cushion the shocks, the holes are well placed. The only flaw is at the right button on the device (the function to access the switch on / turn off / standby) on the inside of the hull is slightly dug which prevents the trigger button but accidentally go harder the said button activation. It's a whole lil bit boring for me because I abusing button but if the product is good as a whole)
