I chose this case over some of the more stylish hard-cases as I don't trust myself not to drop my phone.
# After falling onto the floor a few times, the screen on my phone has yet to crack (obviously I wouldn't recommend dropping it to test this, but the case seems to absorb the shock nicely.
# With a rubber case rather than a hard-case, the phone can be perched upright and stay in-place. I can throw it onto my bed and it won't slide off.
# Looks nice. I only got an iPhone a year ago and I thought the case-that-looks-like-a-cassette thing would annoy people by now, but I've had a fair few people compliment me on the case. Some people still see it and ask why I'm carrying a casseette around.
# No danger of case cracking.
# Always looks good-as-new, nothing seems to mark it.
# Very Easy to remove
# Although the case is generally snug to the phone, sometimes the case does slip up in front of the camera very slightly, enough to cause a purple blur at the bottom of photos. (which makes quite an interesting filter actually) Squeezing the sides of the case while using the phone stops this and it's never really been a problem but I thought I'd mention it.
All in all, I'm really happy with this case and would highly recommend it.