[wtmt]

The only feature I want back is full app sync with a computer, like it used to be some years ago (both transferring from the iOS device to the computer and back from the computer to the iOS device). This was removed when app thinning was introduced, and partially retained in the iTunes version for enterprise.

This saves bandwidth when managing multiple devices, makes setting up a new device a whole lot faster (than waiting for apps to download), offers control on the app versions and also helps in cases when some developer removes an app from the store because they want customers to buy another app or a differently named one.

[acolumb]

Now, iTunes backups (which historically took up gobs of space on the tiny MacBook drives of years past,) only save app data, and restoring will take up the aforementioned bandwidth.

That’s why I use an iOS 6 iPhone 5 with iTunes 11 on OS X Mavericks.