Windows 10 is plug and play, install is very fast and everything just works. No drivers to download or anything. I have no stability issues with it, works great with Google Chrome Remote Desktop, and that way you can use any of the thousands of Windows applications with it which is nice since that's such a huge library.So I got mine and I'm going to be ordering the hard drives and RAM for it soon. What OS are people throwing on this for NAS duty?
I mostly just serve the files through Windows HomeGroup, and it also works for controlling my home cameras, some automation, misc. stuff like that as an always on machine, and is very stable. You can even schedule reboots once a week or so if desired, but I see no need.