I actually emailed myself 3000+ photos last night that I needed to retain so I would have them in case something went wrong. That was the easy part since I figured out how to copy them by folder. It all went downhill from there.
This turned into a disaster this morning when I attempted to restore to 7.1.2. I was able to reload 7.1.2 on my iPad successfully, but when it came time to restore from a backup at the setup screen it was unsuccessful, got an error message that the 7.1.2 backup was corrupt. I tried at least 20 times from both iCloud and laptop backups (Windows 7 Professional) each time received same error message. I finally gave up and reinstalled 8.0 to see if there may be something else going on! just so I could test the backups. Well 8.0 installed fine, 8.0 backup installed fine. So here I am right where I was last night with the same issues. then spent hours re-entering usernames, passwords, etc. you get the idea.
I did notice Bloomberg posted an article on Yahoo! Finance over an hour ago about 8.0 and that there are lots of issues. I can only hope Apple is working on patches and will release a new update soon. This is so disappointing when you have a device you've babied and there's not a fingerprint on it, never had even a tiny issue with in 4 years, loved it like part of the family. So strange that with every prior update I've never had even a hiccup from those.
All I can do is wait now along with everyone else for an update to come...