Things I have noticed:
1. When listening to music or podcasts the lock screen widget time slider is not working and it is not tracking time played and time left
2. Audio will pause after a while (turned off hey Siri since that was the issue on the iOS 10 beta but does not seem to completely correct the issue, but does not occur as often)
3. Unless I am missing something, if turn on type to Siri you lose the ability to use voice. Would like the ability to do both without changing settings.
4. Slide to clear notifications does not seem to be there anymore. Hope that is not permanent.
I do like the new accounts tab in settings and the way iCloud Keychain works now.
The customizable control center is a great improvement.
Doesn't seem iMessage in iCloud is working yet but will be great to have when it does.