In my case, I want a stable OS. Also there's a high chance the Windows 10 video driver for my 4 year old Dell laptop is broken, just like the last 3 versions Dell released for Win7. Only the first one from 2012 has no bugs.
I think the OS itself is stable, but once you throw in a bunch of rushed drivers, a bunch of software that was 'fixed' to run on the newest windows and another bunch of outdated software, then something is bound to break.