Xperia S/SL/acro S owners – how are you finding the Jelly Bean update?

Xperia S/SL/acro S owners – how are you finding the Jelly Bean update?

http://www.xperiablog.net/2013/05/31/xperia-sslacro-s-owners-how-are-you-finding-the-jelly-bean-update/