It's an inexpensive way to create a SAN with some software to tie stuff together. Assuming your router doesn't already do most of this, I suppose it could be useful for home users. I find the anti-Prism claims to be getting old quickly, and probably dubious in this case considering users with no security knowledge are being encouraged to create a single access point to all of their data. This obviously resonates with people, but I'm rather surprised at the success so far.
That's the beauty of marketing, you don't have to tell users the whole truth and you can make it look extremely easy to use. I'm curious to see how this will work out for users in the real world.
