Did you not watch it ?! His controller freezes / goes blank at some point during the update, and then no amount of restarts or special key combinations to start it appear to bring it back to life. He tries different stuff for nearly an hour, STILL gets nowhere, and ends the video saying the only thing he can do is just leave it on, powered from mains and hope it does something other than white screen 'eventually'. As of end of video he has a bricked controller and no way to fly that machine. Which bit of that would you say has gone well ?!
And for that reason, until he solves his problems I won't be installing that update ! Fortunately it hasn't tried to make me do it yet although of course it is showing as available. And yet I know of at least 10 people who have had zero problems, and the ones it does work for seem very happy and apparently it does solve the hyperlapse and waypoint bugs that were in the previous version (that I also didn't have, and therefore didn't suffer from !).
It really does seem that the only thing I am missing from the versions the
m4p shipped with is the vision assist camera views, which I would hardly ever use, and the ability to turn off downward sensors for hand landing. That feature I would like, but not at the expense of a bricked craft or controller !