File system app
What new users think about the app depends on how designer take care of that.
It needs to involve him to make any actions thru inbuilt configuration wizard. Any simple illustration and call to action will work awesome on pages where he didn’t upload a content. Sounds obvious but let’s try to setup any popular social based app or whatever. At most times you’ll see there just instruction pages.
One of the most outstanding example in casu is desktop version of VK. New user feels himself very easy. Moreover, illustrations there create authentic atmosphere. This is that case when pretty UI design helps to simplify usability and to build long term relations with user.