Not so good, but my iPhone really doesn't like to sync with my desktop PC anyway.
Managed to wipe the phone, then had to load the new OS via a laptop, as the Phone/PC wouldn't talk again.
After that, I managed to get all of my data back from the Desktop, though I had to go through the deauth/auth to get some of my apps to reinstall.
Certainly not an easy or painfee experience.
Some nice features (unified inbox), but I do not like the wallpaper and I am a little worried about all these apps which now hang around in the background.