Complaints so far
Wiped my XOOM and put it completely back to factory, unrooted, locked state... just like it was when I bought it 2.5 years ago. Used Motorola's factory restore images.
After all the OS updates completed:
Google+ does not work properly. - Verizon/Motorola didn't bother to put it in as a system app (due to space probably), so the "Location" feature has a blank map. Have to root, then shuffle stuff out of system to user space so you can fit Google+ as system app to work properly.
Hangouts FC on me when I try to do video chats.
Also, notice new modem firmware seems to be in love with 3G (CDMA) mode. So far it hasn't been showing 4G (LTE) except a couple of brief moments.
Oh well... guess I'll load up CM10.1 nightlies again so I can get back the Android 4.2.2 goodies like photosphere and daydream.