With Linux, either (a) it works perfectly or (b) you're buggered - there's no in-between.

With Windows, it might work somewhat or with great annoyance. Or it might be lovely! Until Windows rot sets in.

I think Windows rot stopped being a thing since XP. Windows 7 and Windows 8 installations rarely slow down over time, unless you're installing toobars and adware.

I have a Windows 7 that suffered Windows rot over the year I used it. I finally gave up and went back to the Ubuntu share (despite the Toshiba brightness bug) when Windows refused to suspend properly.