All of these features are great, 8.1 needs 1 more thing though! Other storage needs to be fixed! And before you go replying "oh well its already fixed..." NO IT'S NOT, I'm at 7 gb right now and that is not acceptable! and I have already had to hard reset it because it got over 15 gb (THAT'S POST UPDATE 3)
It is fixed here's what to do.
1) turn off the automatically set time feature
2) put phone in airplane mode
3) set date one year ahead
4)goto temporary files and hit delete
When I did this my temporary folder dramatically decreased from 2.8GB to 56Mb. Make sure to do it overnight so as to not disrupt the day.