What I don't understand is why the casing around the board itself is so well designed and good looking. To me it looks like a "finished" self-contained device on its own. But if you use it together with, say, 2 3.5" HDDs you'll surely need some enclosure around the enclosure. At that point an "ugly" Raspberry PI-style board would have been just as good.
Granted, OP makes good use of the board enclosure, but needs to DIY a case in order to do so.