I'm a Vista user of 8 years now, all though my main machine was moved to Windows 7 (but with my improved Vista visual style), and my laptop can only run Win10.
My list of gripes with Vista:
- Annoying OK box after ejecting devices (like W2000) rather than the baloon used in XP/7/10
- Can't use differing display vendors (Nvidia + AMD cards in one rig), but this is minor and rarely ever needed
- Explorer's folder type discovery, which I always disable right after install.
That it, I'd take Vista over Win7 any day and I hope KernelEx project from Win32 will allow me to return to it on more machines.