I love the features of ios, the fact that they all work, and passively, it allows me to do what I want without a bunch of extra steps.
I think there are many new features in ios7 worth noting, but the most significant improvement is how it's focused on being more personal. I love the new notifications center. I love the way apps are prepared for you. Nobody has mentioned the improvements to siri, her voice is much more clear, and she can handle even more tasks and has a better understanding of context. Overall it feels more refined in a sense of real world use, not a laundry list of features to brag about to people.