It can be hard to express the value proposition. For a lot of people, it's a media server with some really neat torrent related apps. For others it's a photosharing box that doesn't share photos with anyone you don't want it to. Others buy it because it's a tiny Kubernetes cluster, and they want to learn real tech skills with their hobby.
But honestly, it's also a computer. It's the dream machine (1). What was the value proposition of the personal computer? What we're proposing is the personal server. Billions of folks run the client-side of the internet - but only a tiny elite class of us know how to run the server-side?
If I get hyperbolic and kool-aid drunk, just know it's because I'm quite passionate about this. The blockchain folks talk a lot about "distributing the web". We're simply distributing web servers.
For now though - it's a neat box to run Photostructure or a Ghost blog on :)