- still a bit laggy. This is most noticeable when the device thinks I picked it up in landscape and takes its time rotating, in multiple steps, to portrait. Seemingly every time I pick up the phone.
- Mail is flaky, particularly on my iPad Air 2. Stray attachment icons floating around the message view, even in messages without attachments (killing mail and restarting solves).
- Battery usage is a bit high still. Burning about an extra 10-20% of battery in a day, at least on my iPhone 6+.
- News app still a little slow to show me new materials. Sometimes you have to tap between tabs to get it to load new material.