OK I wanted to share my experience with the update with everyone as a warning to be carefully and decide if it is worth it. Mine had some small issues so I decide to try the update. The problem went away, but i noticed to phone was not working the same as it use to, So I went back to 9A405.
I use to be able to play iPod function over bluetooth for 2 hours and stream pandora over wifi for 6 hours and a few messages and call mixed in there and at the end of the day, it would be between 60 - 75%. Now my phone gets 2 hours of iPod over bluetooth and when I get home it will be >10%. I have gone and disabled all battery draining services on my phone now and still just as bad.
My Phone loose service randomly for a few seconds a few times a day. It also will disconnect from the towers and the only way to connect again is to either restart or turn airplane mode on then off.
My phone sometimes thinks there is a dock audio connect plugged in randomly. Now it will only play the 2nd half of notification sounds.
The phone does not stay off. If I try to turn it off, it will turn right back on.
I know this is not the normal issues people experience after this update, but be aware the are problems with this update and they do not affect everyone.