I don't think there is a point if you already have an S7 because you will get the same software updates at around the same time. Unless you are using something like an S5 or S6, I probably wouldn't upgrade.
The latest update for the Galaxy Tab E let me uninstall Samsung Milk Music (It was preinstalled, and was discontinued) along with some other bug fixes, but now when I start up the tablet I get the screen with the gears saying:
"Android is Starting
Starting Apps."
It never said this before the...