I've been very unhappy with this new update.
1) My battery life has been worse; I used to be able to easily make it 16 hours on a charge. Now I'm lucky to make it 12.
2) The device is noticably slower - unlocking, loading apps, changing screens, everything has a lag that wasn't there before.
I mentioned it at the Verizon store today, and the rep said she was having the same issues with her phone since she got the update.
I realize that Verizon is not going to provide a fix, nor is there a way to go back, but I want to register my disappointment.