Fits the Galaxy J7 2017 perfectly and does not impede any of the phone's functions (camera, volume controls) or obscure inputs (charge port, audio jack). Grippy without adding too much bulk to an already large phone.
Don't know how much drop protection this case would provide, but I suspect it was designed more to keep the case, screen and camera lens from getting scratched up when placing the phone down on hard, flat surfaces. To this end, the case does what it's supposed to.
The only reason I didn't give it 5-Stars is because of the price. $20 is a little stiff for a piece of plastic that no doubt costs little to produce. No regrets on the purchase, even at that price, and I would buy it again. In fact, I did when I bought one for my wife's J7.