Well I just got the update on both my Nexus 7 2012 and 2013. I did the ota to the 2012 and it failed miserably. I got the android laying on it's back and it said no command. Hubby flashed the images for me and said "you wanted it wiped, right"?
Of course I didn't but I've got everything thing backed up to Box so I'll get it back anyway.
I will be putting off doing my 2013 until I can figure out how to get rid of all the horrible white backgrounds on everything. I don't like the look overall very much. The navigation keys look real weird - a circle for home? Getting to settings is a pita now too. Where it was just pull down the notification bar and then to settings, there's an extra tap now. Not that I've looked too much because of the horrible bright white.
I went with Nexus devices because I hated what all the other devices did with Android, now I hate what Google did with Android. Back to custom roms again I guess.