I, also have tried a bunch of the super slim polycarbonate cases and keep going back to my white Apple silicone case. Each time I go back to the silicone, I realize how much I really like it. I also would prefer bottom coverage but I get why Apple didn't provide it - #1 with full around coverage would be a bear to get off, #2 then you also have to design perfectly so the holes line up and to accommodate all the different accessories using the earphone hole. I could just imagine all the "bent phone" complaints trying to get the all edge coverage case off the phone. Pretty tough design specks to get a tight fitting case like this.