I really like the disk usage analyzer in gnome. The ui/visualization is really intuitive and useful, and I often wish for something similar on windows.
I'm not sure what the gnome disk usage analyzer looks like but WizTree on windows is excellent at showing you where stuff is and how much space it takes up
Wiztree looks interesting, I'll see if I can install it, although my work machine is pretty locked down, so I wouldn't be surprised if it's off limits.