I dropped my phone in my Magpul case twice and so far it protected my phone.  The first time I was standing next to my car and put my phone into my shirt pocket.  I missed the pocket and it dropped straight down onto the asphalt pavement, bouncing first on the corner by the sleep/awake button, bounced around, and landed face first.  The case had a scrape on it, but the phone, even the front screen, was untouched.  I got lucky on the front screen because there is little if any protection on the front, but the phone itself is perfect.  Then I did it again a few weeks later......

...still undamaged.