Just putting it out there that I got some X-1s from BlackArrow and their quality is not that bad at all. They are super silent, have great heatsinks, the wifi and lcd are working nicely and setting it up takes minutes.
They are actually quite nice machines when they work. They are just so horribly late.
A small number were shipped with incorrect firmware which was extremely unstable and wasn't upgradeable by the user, rendering the units essentially door stops. A small number, but still some.