I have to say though, I use Microsoft and Apple products, and the latest Apple upgrade to iOS10 is fraught with glitches.
The new displays are poor, the notifications are (or were) faulty when launched, and it now takes more button presses to access what were previously easy links.
I've googled these issues, and they don't even feature in the top 10 common glitches with this update!
All other updates have been pretty slick, but not this time.