Andrew--I appreciate that the Ars readership is somewhat geeky and you've slanted this review with regard to the extent to which you can hack this thing.
Having said that, you've ignored the demographic to whom this product is aimed at; namely, people who might otherwise buy Chromeboxes (after all, this is essentially an HP Chromebox running Windows 8.1). It's mainly geared to using online services (OneDrive presumably), hence the small amount of storage.
So I'd be curious as to how it performs compared to a similarly priced Chrome OS device. As some of us buy these kinds of things for our non-techie parents, it would be useful to know.