I had a different case from a competitor for my iPhone 4S that was very protective but bulky so when I got a new iPhone 6 I thought I'd try the OtterBox Defender series. I love it! it is smaller that what I previously had but protects better, mainly due to the built-in screen protector. The fingerprint ID doesn't work well with the new cover, but I don't use it so it doesn't affect me. I love the texture of the cover as well, there is grip to it but it doesn't get hung up in your pocket and comes out quite easily. The only thing I'd change/improve would be the touch feature over the Home button.
I also loved the mix and match selections that I was able to get from OtterBox that weren't available at the mall kiosks and for a better price too!
I put the new Otterbox case on my new iPhone 6s and could not be happier. The case fits perfectly, I haven't drop tested it yet but I think it will work.
Excellent case, it offers excellent protection including a cover for the screen that I only use for times when I am actually working in some pretty rough locations. I like the range of bright colors that are available. My last phone and case were black, and I constantly got up from my black computer desk and left it laying there.