I have the 6+ and the other half has the 6. Both are running considerably slower since iOS 9. That and a whole list of problems make me really wish I hadn't upgraded just yet. - cannot contact mail server in mail. - touch screen unresponsive. - freezing completely for no known reason. - freezing every time you try to access the camera with the slide up from bottom right function. - connectivity issues with Apple Watch (not ringing etc, notification lag). - activity keeps reverting back to metric. Is it just randomly the two phones that just happen to be in the same house or is this update flawed?