Now that the iPhone 5s has been out for some time... was wondering... how are we all making out with the durability of the product? Any scratches, dents or blemishes on your 5s, or is it holding up quite well? iPhones have become more and more durable through the years, using better and stronger materials... but I always like to hear from users what their real experience is. So what say you? Is your 5s holding up well or do you have it tucked away in a protective case?