My anecdote: I was about to have an important meeting and needed to print off some sheets from my Windows-based netbook. The power was low (<3%), so I plugged in the charger and resumed it from hibernation. It had been offline for a little while up until then because of traveling. Seeing the power was plugged in and I was shutting the machine down going into the meeting, Windows presumed that right then was a perfect moment to perform a Windows update. That night I wiped it and put Ubuntu on there.
FYI the Linux experience has been mostly great. There's been maybe a problem once a year, with some driver or package issue - but most of the time it runs great. I can safely run anything on it overnight knowing that it won't decide to do anything on it's own accord.