i had a lot of issues, but was able to get it to work, at least to the next update , my phone battery was awful , I did a clean iOS 9 install and set the phone as new and install the apps one by one, the ones that didn't work got deleted ( few of them)
On Apple Watch I had issues with Tap and sound, weather app, alerts. on this I erase everything, set as new and didn't do the apps automatically, when I did at the first time the apps where stuck installing, so by doing them one by one I made sure they got installed, I kept resetting the watch until I got most of the apps working, took at least 5 times. My current issues now are that I can only reply to iMessages, regular messages don't work, the weather app has issues, so I'm using the weather channel app, and the battery sucks, but yesterday it lasted until 10:00pm, not bad until the next update