Share your experience!
You can manually upgrade easily enough:
http://forum.xda-developers.com/showthread.php?t=2658952
You're not missing anything anyway.
They're stock Sony firmwares.
Stay on the 4.1
4.3 is a bad one.
@frantizsekk wrote:Stay on the 4.14.3 is a bad one.
^^ well worth considering.