I did the upgrade and my phone is slower, first of all so not impressed at all. The other thing is that ringtones that I've purchased from iTunes on my actual phone won't change to be the primary ringtone. My ringtones won't change and it's driving my nuts cause everything got erased from the phone music-wise so getting that to where it should be (organizing playlists etc) will take half a day at least. Needless today everything that was erased included the ringtones i'd made myself on iTunes. I'm so frustrated cause it was supposed to be this great thing and my music is messed up and my default ringtone won't change (pretty basic stuff!). It's been SO hard to write this without cursing but I'm so extremely frustrated!! Not worth the upgrade whatsoever so far.