Mine was bought last week and delivered yesterday ( with 4.1 or something old android and bought at sony site , despite higher pricing than local shops ) , did update ( with PC compagnion ) to 4.3 version and indeed , the shutting down causes it to freeze .
When waiting few minutes or longer , it finally shuts down .
VERY annoying and VERY unpleasant first experience with xperia tablet Z .
( have to shut it down at airport and travel 2 times a week by plane ..... pfffftttt )
Such basic malfunction should be solved instantly .... come on sony !
