I've purposely driven my truck, (1997 Chevrolet Blazer LT), over my ZeroLemon case, and my phone still works fine. There's a crack in the screen, but considering 2.5T rolled over it as a a test, it's a fine case.
Phone: Samsung SGS III International i9300
ROM: OmniROM Official NIGHTLY
Kernel: 3.0.101 Boeffla-Kernel-2.4-beta5-Omnirom-NG-i9300-20140902@andip71 #1
O/C Level: 1600 MHz
Media Card: Samsung 64GB Class 10 MicroSDHC
Battery: 7000 mAh ZeroLemon