Huge, longtime lover and advocate of Everything here - it's just so powerful to be able to find every file Everything knows about with .jpg in the name, sort by date, then if I really care start filtering by drive and folder ("C:/Users/[name]/Downloads"). Having folders sorted into a sane hierarchy is important, but being able to open Everything with Ctrl + Space (my preferred shortcut on a computer that I won't also be gaming on) and start typing is great and usually so much faster.

Also works pretty well with mapped/mounted drives - sometimes there are issues, but I suspect most of those are Windows/network based, not Everything's fault.