Add me to the list.  I've tried the "delete & re-add Exchange account" idea, but to no avail.  I have an extended battery, and while my phone seems to last somewhat longer than before I tried the Exchange fix, it's still nowhere near what it was before the 4.2.2 update.

I'm also noticing things like general slowness, not getting notifications about incoming emails (though they show when I look at the account) and the phone not securing itself after the preset amount of time has passed.

The bells and whistles of 4.2.2 are nice, but certainly not worth all this grief.  Is there any way to remove it and go back to 4.1.1?