I went and did it 3 weeks ago-ain't looking back!
I'm stunned. WP pretty much now has to be on par with IOS and Android now with all the new features. No excuses for anyone not to consider WP anymore.
Notification center (love it!), file manager, Word Flow, VPN, download complete emails (finally), options to store whatever on phone or SDcard, separate volume controls, I could on and on..
Have a few minor issues. Wi-Fi sometimes doesn't connect, sometimes lock screen is dark, and GPS get confused a little bit more.
Don't like having games in the app list. Hope MS can make it option to remove games.
Advice for anyone sitting on the fence-do it!