Preliminary opinion on Win10...
It's ok... lol
So far I've only found two things that bug me a little bit.
In the new browser it comes with, Edge ( also still has IE for those die hards ), when I imported my bookmarks into it's favorites... it sorted them in decending ( z->a ) instead of ascending order and they don't have a quick sort by name option to change it. To make changes, you have to drag and drop the shortcuts into the order you want.
The Updates, as I mentioned earlier to CJ are automatic with the only option is to defer them until a later time and then only on the new feature updates and not on security updates. Unless someone finds a different way around this, a lot of folks will be upset with that lack of options. Of course I'll keep my eye's open for a work-around if one is found or exists.