IMHO, installing from a USB thumb drive is the way to go. Faster than doing the install from optical media. Also easy to redo if a new image comes out. No size restrictions too.
Who knows, maybe some day we'll all just "Boot from the Cloud"! Run the whole OS from somewhere-out-there......... spooky!
The forced updates would turn me off. You would be forced to auto update anytime Microsoft wants you to and you couldn't hide updates. I could see that being an issue with some hardware drivers. Like some, you wouldn't be able to wait tell Saturday to install the updates unless you some how block Microsoft updates.