The GitHub page has a pretty great example:

https://github.com/FormidableLabs/webpack-dashboard

It replaces the endlessly scrolling output of webpack-dev-server with a dashboard, providing at-a-glance info.

Well I've been working on a big angular project for over a year and I couldn't tell you offhand what the ten biggest modules are in it or confirm with certainty every single one is still being used. Even though I know this is the sort of thing I should devote more attention to and for which there's ample tooling, having it staring me right there in the face every day when I run the server would be a big improvement.

It will make the display of webpack information more organized and glance-able, which will improve my experience.

And I appreciate the aesthetics, nice looking things motivate me to work, so that's a bonus too. Anybody who says this is superficial doesn't know how humans think, and shouldn't be allowed to do UI/UX design.