iOS 9 is deceptive. When Apple first publicly trotted out the update at WWDC a few months back, it seemed happy to hang its hat on just a few new features: Apple News, better Maps and an improved Notes app. After using the betas for months and putting in still more time with the final, ready-for-everyone build, though, it's clear that what Apple built is far more nuanced than it might have let on. (And there I was, thinking I'd have an easy review to write. Silly me.) Instead, what we've got here is in some ways a continuation of a philosophy that seemed to start in earnest in the Apple Watch. iOS 9 is less about new, whizbang features and more about getting the stuff we do everyday done just a little quicker, a little more efficiently. And you know what? That's more valuable than you might think.

http://www.engadget.com/2015/09/22/ios-9-review/