The only issue we've had at the company I work at is that there were some monitor driver issues a few months ago. It'd sometimes lose connection to a monitor or two for a few seconds (and this wasn't so common as to really cause problems... maybe once a week it would exhibit this behavior for an hour). We got a new driver update a few weeks later that fixed that issue. Other than that, it's been pretty smooth sailing.
I'd say it closed more than 3/4th of the distance between Windows 7 and OS X. If you're going to be forced to use Windows for whatever reason, try to make sure it's Windows 10 and not an older version.
That's fair enough. We've had some real weird bugs though. 30 laptops at a time, all identical models, being deployed simultaneously with an identical bloatfree OS. About 1/4 of them will have a weird error where Windows Explorer crashes & restarts if you create a new folder on the desktop, or open a zip file. All drivers fully up-to-date. The only fix? Create a new user account. No idea why it happens as everything is identical.
Other problems include Windows randomly installing conflicting trackpad drivers for no reason. Windows + R, main.cpl, and it spits up a driver error. We've tried recapturing a fresh image for the fourth time and hopefully it's fixed the issue.
Resetting Edge is a pain (though it's a junk browser and we encourage against it). Delete folders in %programdata% (or %appdata%, I forget which), and download the components again through Powershell?! What an absolute joke.
Granted, I don't think it's a bad OS. It's just so frustrating to encounter stupid bugs that are impossible to fix and vaguely documented. Also, take a shot everytime a Microsoft representative on their forums suggests sfc /scannow. Worse than useless.