This makes me think of QGIS. I've recently been learning it for a couple different projects. It's an incredibly powerful and configurable tool, but its learning curve is incredibly steep. A big reason for this is that the UI is almost entirely toolbar+button based -- but the meaning of all of the button icons are completely opaque to a new user. And, making things worse, there's no way to change the UI to show text next to buttons. So every time a user wants to do something, even if following instructions that say "click the add feature button", they have to hunt around for it.

QGIS is free software, so it can be somewhat excused vs a billion dollar company. But they could really benefit from some UX expertise...