I don't really like the new IOS7, much prefer things the way they were. I went to update to IOS7.02 recently, and iTunes reset my iPhone. I had to download IOS 7 again and reinstall. It took 4 downloads to get it right; it would stop when nearly finished and abandon the download. I had to upgrade my internet data allowance because each download was almost a Gb!
I had no phone for three days.
Really, seriously peeved with iTunes and upgrades.