I use 10 purely because it was free and I like the UI among other things.
I keep 7 dual booted in case I need to run XP Mode and some games that don't work on 10 anymore.
For legacy stuff I have my DOS and 98 computers.
If you are doing what you do now just fine with 7 then why upgrade? 7 is still supported until 2020.
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Not had the kicking out of games but yeah the automatic updating is stupid. If I recall only certain Enterprise editions can defer them temporarily or permanently.
On topic I will probably pick it up but after Age of Empires 3 I will wait for reviews on this game. Not too fussed if I can only get it for PC through the Windows Store.