I have now, and it is better ..thanks.
That said the new notifications are really ugly and intrusive and make unlocking the phone with swipe more difficult. Also I now don't get the little preview on the status bar.
Not the end of the world, I'm just disappointed that the performance increase comes with massive battery drain, and a much less cosmetically pleasing interface.
I would still be interested to know, if any one else has a font which seems abnormally large when texting. The rest of the apps including email are fine, but the text size in messaging is way to big even on it's smallest setting. I am tempted to do a full factory reset as some people have suggested it helps with battery live, but I may not bother if it won't solve my font size issue.
Thanks for the help so far,
Mr_D